Home / 20,946,429-31,419,327.96-9,423,758.88

Finding the Fourth Proportional to 20,946,429, 31,419,327.96 and 9,423,758.88

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Solution

The fourth proportional to 20,946,429, 31,419,327.96 and 9,423,758.88 is: 14,135,496.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,946,429 : 31,419,327.96 = 9,423,758.88 : x
  2. Step 2: Convert to fraction form
    20,946,429/31,419,327.96 = 9,423,758.88/x
  3. Step 3: Cross multiply
    20,946,429x = 31,419,327.96 × 9,423,758.88
  4. Step 4: Simplify right side
    20,946,429x = 296,088,170,866,682.31
  5. Step 5: Solve for x
    x = 296,088,170,866,682.31/20,946,429
  6. Step 6: Final answer
    x = 14,135,496.36

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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.