Home / 635,346,390.18-876,506,045.78-396,777,398.38

Finding the Fourth Proportional to 635,346,390.18, 876,506,045.78 and 396,777,398.38

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Solution

The fourth proportional to 635,346,390.18, 876,506,045.78 and 396,777,398.38 is: 547,382,961.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,346,390.18 : 876,506,045.78 = 396,777,398.38 : x
  2. Step 2: Convert to fraction form
    635,346,390.18/876,506,045.78 = 396,777,398.38/x
  3. Step 3: Cross multiply
    635,346,390.18x = 876,506,045.78 × 396,777,398.38
  4. Step 4: Simplify right side
    635,346,390.18x = 347,777,788,508,929,536
  5. Step 5: Solve for x
    x = 347,777,788,508,929,536/635,346,390.18
  6. Step 6: Final answer
    x = 547,382,961.30

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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.