Home / 452,490,691.78-678,731,700.67-268,125,455.78

Finding the Fourth Proportional to 452,490,691.78, 678,731,700.67 and 268,125,455.78

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Solution

The fourth proportional to 452,490,691.78, 678,731,700.67 and 268,125,455.78 is: 402,185,613.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,490,691.78 : 678,731,700.67 = 268,125,455.78 : x
  2. Step 2: Convert to fraction form
    452,490,691.78/678,731,700.67 = 268,125,455.78/x
  3. Step 3: Cross multiply
    452,490,691.78x = 678,731,700.67 × 268,125,455.78
  4. Step 4: Simplify right side
    452,490,691.78x = 181,985,246,594,478,272
  5. Step 5: Solve for x
    x = 181,985,246,594,478,272/452,490,691.78
  6. Step 6: Final answer
    x = 402,185,613.76

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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.