Home / 86,427,098.20-129,640,647.30-71,497,178.20

Finding the Fourth Proportional to 86,427,098.20, 129,640,647.30 and 71,497,178.20

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Solution

The fourth proportional to 86,427,098.20, 129,640,647.30 and 71,497,178.20 is: 107,245,767.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,427,098.20 : 129,640,647.30 = 71,497,178.20 : x
  2. Step 2: Convert to fraction form
    86,427,098.20/129,640,647.30 = 71,497,178.20/x
  3. Step 3: Cross multiply
    86,427,098.20x = 129,640,647.30 × 71,497,178.20
  4. Step 4: Simplify right side
    86,427,098.20x = 9,268,940,461,971,450
  5. Step 5: Solve for x
    x = 9,268,940,461,971,450/86,427,098.20
  6. Step 6: Final answer
    x = 107,245,767.30

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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.