Home / 866,205,792.30-1,299,308,688.45-770,971,565.10

Finding the Fourth Proportional to 866,205,792.30, 1,299,308,688.45 and 770,971,565.10

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Solution

The fourth proportional to 866,205,792.30, 1,299,308,688.45 and 770,971,565.10 is: 1,156,457,347.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,205,792.30 : 1,299,308,688.45 = 770,971,565.10 : x
  2. Step 2: Convert to fraction form
    866,205,792.30/1,299,308,688.45 = 770,971,565.10/x
  3. Step 3: Cross multiply
    866,205,792.30x = 1,299,308,688.45 × 770,971,565.10
  4. Step 4: Simplify right side
    866,205,792.30x = 1,001,730,053,082,324,864
  5. Step 5: Solve for x
    x = 1,001,730,053,082,324,864/866,205,792.30
  6. Step 6: Final answer
    x = 1,156,457,347.65

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.