Home / 145,156,731.10-217,735,096.65-130,824,007.90

Finding the Fourth Proportional to 145,156,731.10, 217,735,096.65 and 130,824,007.90

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Solution

The fourth proportional to 145,156,731.10, 217,735,096.65 and 130,824,007.90 is: 196,236,011.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,156,731.10 : 217,735,096.65 = 130,824,007.90 : x
  2. Step 2: Convert to fraction form
    145,156,731.10/217,735,096.65 = 130,824,007.90/x
  3. Step 3: Cross multiply
    145,156,731.10x = 217,735,096.65 × 130,824,007.90
  4. Step 4: Simplify right side
    145,156,731.10x = 28,484,978,004,246,864
  5. Step 5: Solve for x
    x = 28,484,978,004,246,864/145,156,731.10
  6. Step 6: Final answer
    x = 196,236,011.85

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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.