Home / 87,789,871.40-131,684,807.10-55,541,244.20

Finding the Fourth Proportional to 87,789,871.40, 131,684,807.10 and 55,541,244.20

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Solution

The fourth proportional to 87,789,871.40, 131,684,807.10 and 55,541,244.20 is: 83,311,866.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,789,871.40 : 131,684,807.10 = 55,541,244.20 : x
  2. Step 2: Convert to fraction form
    87,789,871.40/131,684,807.10 = 55,541,244.20/x
  3. Step 3: Cross multiply
    87,789,871.40x = 131,684,807.10 × 55,541,244.20
  4. Step 4: Simplify right side
    87,789,871.40x = 7,313,938,028,570,994
  5. Step 5: Solve for x
    x = 7,313,938,028,570,994/87,789,871.40
  6. Step 6: Final answer
    x = 83,311,866.30

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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.