Home / 318,927,545.40-478,391,318.10-103,516,793.40

Finding the Fourth Proportional to 318,927,545.40, 478,391,318.10 and 103,516,793.40

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Solution

The fourth proportional to 318,927,545.40, 478,391,318.10 and 103,516,793.40 is: 155,275,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,927,545.40 : 478,391,318.10 = 103,516,793.40 : x
  2. Step 2: Convert to fraction form
    318,927,545.40/478,391,318.10 = 103,516,793.40/x
  3. Step 3: Cross multiply
    318,927,545.40x = 478,391,318.10 × 103,516,793.40
  4. Step 4: Simplify right side
    318,927,545.40x = 49,521,535,240,111,384
  5. Step 5: Solve for x
    x = 49,521,535,240,111,384/318,927,545.40
  6. Step 6: Final answer
    x = 155,275,190.10

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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.