Home / 128,508,121.08-192,758,502.87-36,391,641.30

Finding the Fourth Proportional to 128,508,121.08, 192,758,502.87 and 36,391,641.30

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Solution

The fourth proportional to 128,508,121.08, 192,758,502.87 and 36,391,641.30 is: 54,586,420.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,508,121.08 : 192,758,502.87 = 36,391,641.30 : x
  2. Step 2: Convert to fraction form
    128,508,121.08/192,758,502.87 = 36,391,641.30/x
  3. Step 3: Cross multiply
    128,508,121.08x = 192,758,502.87 × 36,391,641.30
  4. Step 4: Simplify right side
    128,508,121.08x = 7,014,798,293,970,060
  5. Step 5: Solve for x
    x = 7,014,798,293,970,060/128,508,121.08
  6. Step 6: Final answer
    x = 54,586,420.18

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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.