Home / 69,120,363.40-103,680,545.10-51,204,459.40

Finding the Fourth Proportional to 69,120,363.40, 103,680,545.10 and 51,204,459.40

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Solution

The fourth proportional to 69,120,363.40, 103,680,545.10 and 51,204,459.40 is: 76,806,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,120,363.40 : 103,680,545.10 = 51,204,459.40 : x
  2. Step 2: Convert to fraction form
    69,120,363.40/103,680,545.10 = 51,204,459.40/x
  3. Step 3: Cross multiply
    69,120,363.40x = 103,680,545.10 × 51,204,459.40
  4. Step 4: Simplify right side
    69,120,363.40x = 5,308,906,262,142,818
  5. Step 5: Solve for x
    x = 5,308,906,262,142,818/69,120,363.40
  6. Step 6: Final answer
    x = 76,806,689.10

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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.