Home / 87,710,019.84-131,491,044-55,290,471.36

Finding the Fourth Proportional to 87,710,019.84, 131,491,044 and 55,290,471.36

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Solution

The fourth proportional to 87,710,019.84, 131,491,044 and 55,290,471.36 is: 82,889,068.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,710,019.84 : 131,491,044 = 55,290,471.36 : x
  2. Step 2: Convert to fraction form
    87,710,019.84/131,491,044 = 55,290,471.36/x
  3. Step 3: Cross multiply
    87,710,019.84x = 131,491,044 × 55,290,471.36
  4. Step 4: Simplify right side
    87,710,019.84x = 7,270,201,802,378,500
  5. Step 5: Solve for x
    x = 7,270,201,802,378,500/87,710,019.84
  6. Step 6: Final answer
    x = 82,889,068.04

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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.