Home / 1,216,685,856.33-1,679,096,850.05-680,832,844.19

Finding the Fourth Proportional to 1,216,685,856.33, 1,679,096,850.05 and 680,832,844.19

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Solution

The fourth proportional to 1,216,685,856.33, 1,679,096,850.05 and 680,832,844.19 is: 939,588,701.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,685,856.33 : 1,679,096,850.05 = 680,832,844.19 : x
  2. Step 2: Convert to fraction form
    1,216,685,856.33/1,679,096,850.05 = 680,832,844.19/x
  3. Step 3: Cross multiply
    1,216,685,856.33x = 1,679,096,850.05 × 680,832,844.19
  4. Step 4: Simplify right side
    1,216,685,856.33x = 1,143,184,284,090,011,520
  5. Step 5: Solve for x
    x = 1,143,184,284,090,011,520/1,216,685,856.33
  6. Step 6: Final answer
    x = 939,588,701.67

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Half scale
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Double scale
Find fourth proportional to 1,216,685,857.33, 1,679,096,851.43 and 680,832,845.19
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.