Home / 142,131,737.70-213,197,606.55-128,952,000.90

Finding the Fourth Proportional to 142,131,737.70, 213,197,606.55 and 128,952,000.90

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Solution

The fourth proportional to 142,131,737.70, 213,197,606.55 and 128,952,000.90 is: 193,428,001.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,131,737.70 : 213,197,606.55 = 128,952,000.90 : x
  2. Step 2: Convert to fraction form
    142,131,737.70/213,197,606.55 = 128,952,000.90/x
  3. Step 3: Cross multiply
    142,131,737.70x = 213,197,606.55 × 128,952,000.90
  4. Step 4: Simplify right side
    142,131,737.70x = 27,492,257,951,713,448
  5. Step 5: Solve for x
    x = 27,492,257,951,713,448/142,131,737.70
  6. Step 6: Final answer
    x = 193,428,001.35

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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.