Home / 396,992,017.16-547,849,305.78-220,776,175.88

Finding the Fourth Proportional to 396,992,017.16, 547,849,305.78 and 220,776,175.88

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Solution

The fourth proportional to 396,992,017.16, 547,849,305.78 and 220,776,175.88 is: 304,671,301.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    396,992,017.16 : 547,849,305.78 = 220,776,175.88 : x
  2. Step 2: Convert to fraction form
    396,992,017.16/547,849,305.78 = 220,776,175.88/x
  3. Step 3: Cross multiply
    396,992,017.16x = 547,849,305.78 × 220,776,175.88
  4. Step 4: Simplify right side
    396,992,017.16x = 120,952,074,688,621,168
  5. Step 5: Solve for x
    x = 120,952,074,688,621,168/396,992,017.16
  6. Step 6: Final answer
    x = 304,671,301.84

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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.