Home / 132,072,002.80-198,108,004.20-86,155,500.40

Finding the Fourth Proportional to 132,072,002.80, 198,108,004.20 and 86,155,500.40

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Solution

The fourth proportional to 132,072,002.80, 198,108,004.20 and 86,155,500.40 is: 129,233,250.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,072,002.80 : 198,108,004.20 = 86,155,500.40 : x
  2. Step 2: Convert to fraction form
    132,072,002.80/198,108,004.20 = 86,155,500.40/x
  3. Step 3: Cross multiply
    132,072,002.80x = 198,108,004.20 × 86,155,500.40
  4. Step 4: Simplify right side
    132,072,002.80x = 17,068,094,235,096,302
  5. Step 5: Solve for x
    x = 17,068,094,235,096,302/132,072,002.80
  6. Step 6: Final answer
    x = 129,233,250.60

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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.