Home / 155,402,115.18-214,449,298.65-85,786,001.52

Finding the Fourth Proportional to 155,402,115.18, 214,449,298.65 and 85,786,001.52

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Solution

The fourth proportional to 155,402,115.18, 214,449,298.65 and 85,786,001.52 is: 118,381,579.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,402,115.18 : 214,449,298.65 = 85,786,001.52 : x
  2. Step 2: Convert to fraction form
    155,402,115.18/214,449,298.65 = 85,786,001.52/x
  3. Step 3: Cross multiply
    155,402,115.18x = 214,449,298.65 × 85,786,001.52
  4. Step 4: Simplify right side
    155,402,115.18x = 18,396,747,859,951,832
  5. Step 5: Solve for x
    x = 18,396,747,859,951,832/155,402,115.18
  6. Step 6: Final answer
    x = 118,381,579.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.