Home / 131,238,191.12-196,672,463.28-100,413,432.16

Finding the Fourth Proportional to 131,238,191.12, 196,672,463.28 and 100,413,432.16

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Solution

The fourth proportional to 131,238,191.12, 196,672,463.28 and 100,413,432.16 is: 150,478,735.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,238,191.12 : 196,672,463.28 = 100,413,432.16 : x
  2. Step 2: Convert to fraction form
    131,238,191.12/196,672,463.28 = 100,413,432.16/x
  3. Step 3: Cross multiply
    131,238,191.12x = 196,672,463.28 × 100,413,432.16
  4. Step 4: Simplify right side
    131,238,191.12x = 19,748,557,049,306,372
  5. Step 5: Solve for x
    x = 19,748,557,049,306,372/131,238,191.12
  6. Step 6: Final answer
    x = 150,478,735.50

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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.