Home / 87,017,170.20-130,620,233.70-54,705,557.40

Finding the Fourth Proportional to 87,017,170.20, 130,620,233.70 and 54,705,557.40

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Solution

The fourth proportional to 87,017,170.20, 130,620,233.70 and 54,705,557.40 is: 82,117,732.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,017,170.20 : 130,620,233.70 = 54,705,557.40 : x
  2. Step 2: Convert to fraction form
    87,017,170.20/130,620,233.70 = 54,705,557.40/x
  3. Step 3: Cross multiply
    87,017,170.20x = 130,620,233.70 × 54,705,557.40
  4. Step 4: Simplify right side
    87,017,170.20x = 7,145,652,692,276,764
  5. Step 5: Solve for x
    x = 7,145,652,692,276,764/87,017,170.20
  6. Step 6: Final answer
    x = 82,117,732.35

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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.