Home / 87,103,808.20-130,697,702.70-61,489,664.20

Finding the Fourth Proportional to 87,103,808.20, 130,697,702.70 and 61,489,664.20

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Solution

The fourth proportional to 87,103,808.20, 130,697,702.70 and 61,489,664.20 is: 92,264,138.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,103,808.20 : 130,697,702.70 = 61,489,664.20 : x
  2. Step 2: Convert to fraction form
    87,103,808.20/130,697,702.70 = 61,489,664.20/x
  3. Step 3: Cross multiply
    87,103,808.20x = 130,697,702.70 × 61,489,664.20
  4. Step 4: Simplify right side
    87,103,808.20x = 8,036,557,850,734,434
  5. Step 5: Solve for x
    x = 8,036,557,850,734,434/87,103,808.20
  6. Step 6: Final answer
    x = 92,264,138.81

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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.