Home / 128,117,099.70-192,156,987.15-37,231,211.70

Finding the Fourth Proportional to 128,117,099.70, 192,156,987.15 and 37,231,211.70

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Solution

The fourth proportional to 128,117,099.70, 192,156,987.15 and 37,231,211.70 is: 55,841,394.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,117,099.70 : 192,156,987.15 = 37,231,211.70 : x
  2. Step 2: Convert to fraction form
    128,117,099.70/192,156,987.15 = 37,231,211.70/x
  3. Step 3: Cross multiply
    128,117,099.70x = 192,156,987.15 × 37,231,211.70
  4. Step 4: Simplify right side
    128,117,099.70x = 7,154,237,468,215,830
  5. Step 5: Solve for x
    x = 7,154,237,468,215,830/128,117,099.70
  6. Step 6: Final answer
    x = 55,841,394.20

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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.