Home / 1,421,159,206.14-1,961,068,089.42-786,066,031.26

Finding the Fourth Proportional to 1,421,159,206.14, 1,961,068,089.42 and 786,066,031.26

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Solution

The fourth proportional to 1,421,159,206.14, 1,961,068,089.42 and 786,066,031.26 is: 1,084,698,324.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,421,159,206.14 : 1,961,068,089.42 = 786,066,031.26 : x
  2. Step 2: Convert to fraction form
    1,421,159,206.14/1,961,068,089.42 = 786,066,031.26/x
  3. Step 3: Cross multiply
    1,421,159,206.14x = 1,961,068,089.42 × 786,066,031.26
  4. Step 4: Simplify right side
    1,421,159,206.14x = 1,541,529,010,081,010,176
  5. Step 5: Solve for x
    x = 1,541,529,010,081,010,176/1,421,159,206.14
  6. Step 6: Final answer
    x = 1,084,698,324.73

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Double scale
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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.