Home / 77,251,997.20-115,966,469.40-45,357,264.40

Finding the Fourth Proportional to 77,251,997.20, 115,966,469.40 and 45,357,264.40

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Solution

The fourth proportional to 77,251,997.20, 115,966,469.40 and 45,357,264.40 is: 68,087,842.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,251,997.20 : 115,966,469.40 = 45,357,264.40 : x
  2. Step 2: Convert to fraction form
    77,251,997.20/115,966,469.40 = 45,357,264.40/x
  3. Step 3: Cross multiply
    77,251,997.20x = 115,966,469.40 × 45,357,264.40
  4. Step 4: Simplify right side
    77,251,997.20x = 5,259,921,814,110,309
  5. Step 5: Solve for x
    x = 5,259,921,814,110,309/77,251,997.20
  6. Step 6: Final answer
    x = 68,087,842.45

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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.