Home / 1,421,159,205.63-1,961,068,088.74-786,066,030.75

Finding the Fourth Proportional to 1,421,159,205.63, 1,961,068,088.74 and 786,066,030.75

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Solution

The fourth proportional to 1,421,159,205.63, 1,961,068,088.74 and 786,066,030.75 is: 1,084,698,324.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,159,205.63 : 1,961,068,088.74 = 786,066,030.75 : x
  2. Step 2: Convert to fraction form
    1,421,159,205.63/1,961,068,088.74 = 786,066,030.75/x
  3. Step 3: Cross multiply
    1,421,159,205.63x = 1,961,068,088.74 × 786,066,030.75
  4. Step 4: Simplify right side
    1,421,159,205.63x = 1,541,529,008,546,340,608
  5. Step 5: Solve for x
    x = 1,541,529,008,546,340,608/1,421,159,205.63
  6. Step 6: Final answer
    x = 1,084,698,324.04

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Half scale
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Double scale
Find fourth proportional to 1,421,159,206.63, 1,961,068,090.12 and 786,066,031.75
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.