Home / 77,251,998.20-115,966,470.90-45,357,265.40

Finding the Fourth Proportional to 77,251,998.20, 115,966,470.90 and 45,357,265.40

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Solution

The fourth proportional to 77,251,998.20, 115,966,470.90 and 45,357,265.40 is: 68,087,843.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,251,998.20 : 115,966,470.90 = 45,357,265.40 : x
  2. Step 2: Convert to fraction form
    77,251,998.20/115,966,470.90 = 45,357,265.40/x
  3. Step 3: Cross multiply
    77,251,998.20x = 115,966,470.90 × 45,357,265.40
  4. Step 4: Simplify right side
    77,251,998.20x = 5,259,921,998,112,677
  5. Step 5: Solve for x
    x = 5,259,921,998,112,677/77,251,998.20
  6. Step 6: Final answer
    x = 68,087,843.95

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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.