Home / 356,096,728.18-491,416,370.22-197,329,503.15

Finding the Fourth Proportional to 356,096,728.18, 491,416,370.22 and 197,329,503.15

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Solution

The fourth proportional to 356,096,728.18, 491,416,370.22 and 197,329,503.15 is: 272,316,313.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,096,728.18 : 491,416,370.22 = 197,329,503.15 : x
  2. Step 2: Convert to fraction form
    356,096,728.18/491,416,370.22 = 197,329,503.15/x
  3. Step 3: Cross multiply
    356,096,728.18x = 491,416,370.22 × 197,329,503.15
  4. Step 4: Simplify right side
    356,096,728.18x = 96,970,948,174,843,120
  5. Step 5: Solve for x
    x = 96,970,948,174,843,120/356,096,728.18
  6. Step 6: Final answer
    x = 272,316,313.24

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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.