Home / 189,451,142.10-284,176,713.15-128,229,138.90

Finding the Fourth Proportional to 189,451,142.10, 284,176,713.15 and 128,229,138.90

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Solution

The fourth proportional to 189,451,142.10, 284,176,713.15 and 128,229,138.90 is: 192,343,708.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,451,142.10 : 284,176,713.15 = 128,229,138.90 : x
  2. Step 2: Convert to fraction form
    189,451,142.10/284,176,713.15 = 128,229,138.90/x
  3. Step 3: Cross multiply
    189,451,142.10x = 284,176,713.15 × 128,229,138.90
  4. Step 4: Simplify right side
    189,451,142.10x = 36,439,735,222,656,808
  5. Step 5: Solve for x
    x = 36,439,735,222,656,808/189,451,142.10
  6. Step 6: Final answer
    x = 192,343,708.35

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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.