Home / 129,487,916.70-194,231,875.05-118,906,335.90

Finding the Fourth Proportional to 129,487,916.70, 194,231,875.05 and 118,906,335.90

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Solution

The fourth proportional to 129,487,916.70, 194,231,875.05 and 118,906,335.90 is: 178,359,503.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,487,916.70 : 194,231,875.05 = 118,906,335.90 : x
  2. Step 2: Convert to fraction form
    129,487,916.70/194,231,875.05 = 118,906,335.90/x
  3. Step 3: Cross multiply
    129,487,916.70x = 194,231,875.05 × 118,906,335.90
  4. Step 4: Simplify right side
    129,487,916.70x = 23,095,400,577,182,132
  5. Step 5: Solve for x
    x = 23,095,400,577,182,132/129,487,916.70
  6. Step 6: Final answer
    x = 178,359,503.85

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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.