Home / 13,656,945.28-18,840,663.84-8,221,288

Finding the Fourth Proportional to 13,656,945.28, 18,840,663.84 and 8,221,288

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Solution

The fourth proportional to 13,656,945.28, 18,840,663.84 and 8,221,288 is: 11,341,813.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,656,945.28 : 18,840,663.84 = 8,221,288 : x
  2. Step 2: Convert to fraction form
    13,656,945.28/18,840,663.84 = 8,221,288/x
  3. Step 3: Cross multiply
    13,656,945.28x = 18,840,663.84 × 8,221,288
  4. Step 4: Simplify right side
    13,656,945.28x = 154,894,523,539,825.91
  5. Step 5: Solve for x
    x = 154,894,523,539,825.91/13,656,945.28
  6. Step 6: Final answer
    x = 11,341,813.29

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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.