Home / 129,487,913.20-194,231,869.80-118,906,332.40

Finding the Fourth Proportional to 129,487,913.20, 194,231,869.80 and 118,906,332.40

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Solution

The fourth proportional to 129,487,913.20, 194,231,869.80 and 118,906,332.40 is: 178,359,498.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,487,913.20 : 194,231,869.80 = 118,906,332.40 : x
  2. Step 2: Convert to fraction form
    129,487,913.20/194,231,869.80 = 118,906,332.40/x
  3. Step 3: Cross multiply
    129,487,913.20x = 194,231,869.80 × 118,906,332.40
  4. Step 4: Simplify right side
    129,487,913.20x = 23,095,399,273,112,324
  5. Step 5: Solve for x
    x = 23,095,399,273,112,324/129,487,913.20
  6. Step 6: Final answer
    x = 178,359,498.60

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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.