Home / 20,623,123.28-30,934,725.44-7,672,113.76

Finding the Fourth Proportional to 20,623,123.28, 30,934,725.44 and 7,672,113.76

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Solution

The fourth proportional to 20,623,123.28, 30,934,725.44 and 7,672,113.76 is: 11,508,185.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,623,123.28 : 30,934,725.44 = 7,672,113.76 : x
  2. Step 2: Convert to fraction form
    20,623,123.28/30,934,725.44 = 7,672,113.76/x
  3. Step 3: Cross multiply
    20,623,123.28x = 30,934,725.44 × 7,672,113.76
  4. Step 4: Simplify right side
    20,623,123.28x = 237,334,732,710,046.06
  5. Step 5: Solve for x
    x = 237,334,732,710,046.06/20,623,123.28
  6. Step 6: Final answer
    x = 11,508,185.71

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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.