Home / 356,663,658.20-534,995,487.30-319,250,211.80

Finding the Fourth Proportional to 356,663,658.20, 534,995,487.30 and 319,250,211.80

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Solution

The fourth proportional to 356,663,658.20, 534,995,487.30 and 319,250,211.80 is: 478,875,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,663,658.20 : 534,995,487.30 = 319,250,211.80 : x
  2. Step 2: Convert to fraction form
    356,663,658.20/534,995,487.30 = 319,250,211.80/x
  3. Step 3: Cross multiply
    356,663,658.20x = 534,995,487.30 × 319,250,211.80
  4. Step 4: Simplify right side
    356,663,658.20x = 170,797,422,632,569,216
  5. Step 5: Solve for x
    x = 170,797,422,632,569,216/356,663,658.20
  6. Step 6: Final answer
    x = 478,875,317.70

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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.