Home / 87,421,652.93-120,641,256.43-47,729,182.43

Finding the Fourth Proportional to 87,421,652.93, 120,641,256.43 and 47,729,182.43

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Solution

The fourth proportional to 87,421,652.93, 120,641,256.43 and 47,729,182.43 is: 65,865,930.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,421,652.93 : 120,641,256.43 = 47,729,182.43 : x
  2. Step 2: Convert to fraction form
    87,421,652.93/120,641,256.43 = 47,729,182.43/x
  3. Step 3: Cross multiply
    87,421,652.93x = 120,641,256.43 × 47,729,182.43
  4. Step 4: Simplify right side
    87,421,652.93x = 5,758,108,536,914,160
  5. Step 5: Solve for x
    x = 5,758,108,536,914,160/87,421,652.93
  6. Step 6: Final answer
    x = 65,865,930.74

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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.