Home / 356,156,658.55-491,496,235.39-197,397,031.31

Finding the Fourth Proportional to 356,156,658.55, 491,496,235.39 and 197,397,031.31

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Solution

The fourth proportional to 356,156,658.55, 491,496,235.39 and 197,397,031.31 is: 272,407,929.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,156,658.55 : 491,496,235.39 = 197,397,031.31 : x
  2. Step 2: Convert to fraction form
    356,156,658.55/491,496,235.39 = 197,397,031.31/x
  3. Step 3: Cross multiply
    356,156,658.55x = 491,496,235.39 × 197,397,031.31
  4. Step 4: Simplify right side
    356,156,658.55x = 97,019,897,768,421,552
  5. Step 5: Solve for x
    x = 97,019,897,768,421,552/356,156,658.55
  6. Step 6: Final answer
    x = 272,407,929.04

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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.