Home / 356,096,729.79-491,416,372.45-197,329,504.76

Finding the Fourth Proportional to 356,096,729.79, 491,416,372.45 and 197,329,504.76

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Solution

The fourth proportional to 356,096,729.79, 491,416,372.45 and 197,329,504.76 is: 272,316,315.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,096,729.79 : 491,416,372.45 = 197,329,504.76 : x
  2. Step 2: Convert to fraction form
    356,096,729.79/491,416,372.45 = 197,329,504.76/x
  3. Step 3: Cross multiply
    356,096,729.79x = 491,416,372.45 × 197,329,504.76
  4. Step 4: Simplify right side
    356,096,729.79x = 96,970,949,406,514,208
  5. Step 5: Solve for x
    x = 96,970,949,406,514,208/356,096,729.79
  6. Step 6: Final answer
    x = 272,316,315.47

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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.