Home / 87,370,548.40-131,055,822.60-81,985,279.60

Finding the Fourth Proportional to 87,370,548.40, 131,055,822.60 and 81,985,279.60

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Solution

The fourth proportional to 87,370,548.40, 131,055,822.60 and 81,985,279.60 is: 122,977,919.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,370,548.40 : 131,055,822.60 = 81,985,279.60 : x
  2. Step 2: Convert to fraction form
    87,370,548.40/131,055,822.60 = 81,985,279.60/x
  3. Step 3: Cross multiply
    87,370,548.40x = 131,055,822.60 × 81,985,279.60
  4. Step 4: Simplify right side
    87,370,548.40x = 10,744,648,259,068,998
  5. Step 5: Solve for x
    x = 10,744,648,259,068,998/87,370,548.40
  6. Step 6: Final answer
    x = 122,977,919.40

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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.