Home / 311,365,492.11-429,693,346.95-172,145,221.95

Finding the Fourth Proportional to 311,365,492.11, 429,693,346.95 and 172,145,221.95

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Solution

The fourth proportional to 311,365,492.11, 429,693,346.95 and 172,145,221.95 is: 237,565,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,365,492.11 : 429,693,346.95 = 172,145,221.95 : x
  2. Step 2: Convert to fraction form
    311,365,492.11/429,693,346.95 = 172,145,221.95/x
  3. Step 3: Cross multiply
    311,365,492.11x = 429,693,346.95 × 172,145,221.95
  4. Step 4: Simplify right side
    311,365,492.11x = 73,969,656,581,146,096
  5. Step 5: Solve for x
    x = 73,969,656,581,146,096/311,365,492.11
  6. Step 6: Final answer
    x = 237,565,364.36

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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.