Home / 215,703,914.60-323,555,871.90-86,331,492.20

Finding the Fourth Proportional to 215,703,914.60, 323,555,871.90 and 86,331,492.20

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Solution

The fourth proportional to 215,703,914.60, 323,555,871.90 and 86,331,492.20 is: 129,497,238.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,703,914.60 : 323,555,871.90 = 86,331,492.20 : x
  2. Step 2: Convert to fraction form
    215,703,914.60/323,555,871.90 = 86,331,492.20/x
  3. Step 3: Cross multiply
    215,703,914.60x = 323,555,871.90 × 86,331,492.20
  4. Step 4: Simplify right side
    215,703,914.60x = 27,933,061,231,199,048
  5. Step 5: Solve for x
    x = 27,933,061,231,199,048/215,703,914.60
  6. Step 6: Final answer
    x = 129,497,238.30

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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.