Home / 121,334,168.38-181,712,354.02-77,479,086.56

Finding the Fourth Proportional to 121,334,168.38, 181,712,354.02 and 77,479,086.56

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Solution

The fourth proportional to 121,334,168.38, 181,712,354.02 and 77,479,086.56 is: 116,034,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,334,168.38 : 181,712,354.02 = 77,479,086.56 : x
  2. Step 2: Convert to fraction form
    121,334,168.38/181,712,354.02 = 77,479,086.56/x
  3. Step 3: Cross multiply
    121,334,168.38x = 181,712,354.02 × 77,479,086.56
  4. Step 4: Simplify right side
    121,334,168.38x = 14,078,907,206,136,946
  5. Step 5: Solve for x
    x = 14,078,907,206,136,946/121,334,168.38
  6. Step 6: Final answer
    x = 116,034,150.92

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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.