Home / 87,436,111.20-120,662,416.79-47,743,917.55

Finding the Fourth Proportional to 87,436,111.20, 120,662,416.79 and 47,743,917.55

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Solution

The fourth proportional to 87,436,111.20, 120,662,416.79 and 47,743,917.55 is: 65,886,924.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,436,111.20 : 120,662,416.79 = 47,743,917.55 : x
  2. Step 2: Convert to fraction form
    87,436,111.20/120,662,416.79 = 47,743,917.55/x
  3. Step 3: Cross multiply
    87,436,111.20x = 120,662,416.79 × 47,743,917.55
  4. Step 4: Simplify right side
    87,436,111.20x = 5,760,896,478,605,496
  5. Step 5: Solve for x
    x = 5,760,896,478,605,496/87,436,111.20
  6. Step 6: Final answer
    x = 65,886,924.74

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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.