Home / 396,492,418.80-547,127,459.39-229,239,410.90

Finding the Fourth Proportional to 396,492,418.80, 547,127,459.39 and 229,239,410.90

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Solution

The fourth proportional to 396,492,418.80, 547,127,459.39 and 229,239,410.90 is: 316,331,840.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,492,418.80 : 547,127,459.39 = 229,239,410.90 : x
  2. Step 2: Convert to fraction form
    396,492,418.80/547,127,459.39 = 229,239,410.90/x
  3. Step 3: Cross multiply
    396,492,418.80x = 547,127,459.39 × 229,239,410.90
  4. Step 4: Simplify right side
    396,492,418.80x = 125,423,176,475,614,752
  5. Step 5: Solve for x
    x = 125,423,176,475,614,752/396,492,418.80
  6. Step 6: Final answer
    x = 316,331,840.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.