Home / 129,487,689.20-194,231,533.80-88,673,020.40

Finding the Fourth Proportional to 129,487,689.20, 194,231,533.80 and 88,673,020.40

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Solution

The fourth proportional to 129,487,689.20, 194,231,533.80 and 88,673,020.40 is: 133,009,530.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,487,689.20 : 194,231,533.80 = 88,673,020.40 : x
  2. Step 2: Convert to fraction form
    129,487,689.20/194,231,533.80 = 88,673,020.40/x
  3. Step 3: Cross multiply
    129,487,689.20x = 194,231,533.80 × 88,673,020.40
  4. Step 4: Simplify right side
    129,487,689.20x = 17,223,096,758,970,692
  5. Step 5: Solve for x
    x = 17,223,096,758,970,692/129,487,689.20
  6. Step 6: Final answer
    x = 133,009,530.60

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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.