Home / 231,719,489.28-319,737,348.48-133,915,457.28

Finding the Fourth Proportional to 231,719,489.28, 319,737,348.48 and 133,915,457.28

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Solution

The fourth proportional to 231,719,489.28, 319,737,348.48 and 133,915,457.28 is: 184,782,787.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,719,489.28 : 319,737,348.48 = 133,915,457.28 : x
  2. Step 2: Convert to fraction form
    231,719,489.28/319,737,348.48 = 133,915,457.28/x
  3. Step 3: Cross multiply
    231,719,489.28x = 319,737,348.48 × 133,915,457.28
  4. Step 4: Simplify right side
    231,719,489.28x = 42,817,773,231,193,912
  5. Step 5: Solve for x
    x = 42,817,773,231,193,912/231,719,489.28
  6. Step 6: Final answer
    x = 184,782,787.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.