Home / 87,103,809.20-130,697,704.20-61,489,665.20

Finding the Fourth Proportional to 87,103,809.20, 130,697,704.20 and 61,489,665.20

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Solution

The fourth proportional to 87,103,809.20, 130,697,704.20 and 61,489,665.20 is: 92,264,140.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,103,809.20 : 130,697,704.20 = 61,489,665.20 : x
  2. Step 2: Convert to fraction form
    87,103,809.20/130,697,704.20 = 61,489,665.20/x
  3. Step 3: Cross multiply
    87,103,809.20x = 130,697,704.20 × 61,489,665.20
  4. Step 4: Simplify right side
    87,103,809.20x = 8,036,558,073,666,634
  5. Step 5: Solve for x
    x = 8,036,558,073,666,634/87,103,809.20
  6. Step 6: Final answer
    x = 92,264,140.31

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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.