Home / 87,808,727.20-131,713,090.80-86,129,111.20

Finding the Fourth Proportional to 87,808,727.20, 131,713,090.80 and 86,129,111.20

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Solution

The fourth proportional to 87,808,727.20, 131,713,090.80 and 86,129,111.20 is: 129,193,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,808,727.20 : 131,713,090.80 = 86,129,111.20 : x
  2. Step 2: Convert to fraction form
    87,808,727.20/131,713,090.80 = 86,129,111.20/x
  3. Step 3: Cross multiply
    87,808,727.20x = 131,713,090.80 × 86,129,111.20
  4. Step 4: Simplify right side
    87,808,727.20x = 11,344,331,444,008,898
  5. Step 5: Solve for x
    x = 11,344,331,444,008,898/87,808,727.20
  6. Step 6: Final answer
    x = 129,193,666.80

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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.