Home / 144,945,755.67-217,144,306.20-85,680,705.69

Finding the Fourth Proportional to 144,945,755.67, 217,144,306.20 and 85,680,705.69

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Solution

The fourth proportional to 144,945,755.67, 217,144,306.20 and 85,680,705.69 is: 128,358,897.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,945,755.67 : 217,144,306.20 = 85,680,705.69 : x
  2. Step 2: Convert to fraction form
    144,945,755.67/217,144,306.20 = 85,680,705.69/x
  3. Step 3: Cross multiply
    144,945,755.67x = 217,144,306.20 × 85,680,705.69
  4. Step 4: Simplify right side
    144,945,755.67x = 18,605,077,392,103,600
  5. Step 5: Solve for x
    x = 18,605,077,392,103,600/144,945,755.67
  6. Step 6: Final answer
    x = 128,358,897.48

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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.