Home / 13,148,701.76-18,144,871.08-7,347,531.44

Finding the Fourth Proportional to 13,148,701.76, 18,144,871.08 and 7,347,531.44

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Solution

The fourth proportional to 13,148,701.76, 18,144,871.08 and 7,347,531.44 is: 10,139,404.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,148,701.76 : 18,144,871.08 = 7,347,531.44 : x
  2. Step 2: Convert to fraction form
    13,148,701.76/18,144,871.08 = 7,347,531.44/x
  3. Step 3: Cross multiply
    13,148,701.76x = 18,144,871.08 × 7,347,531.44
  4. Step 4: Simplify right side
    13,148,701.76x = 133,320,010,735,046.75
  5. Step 5: Solve for x
    x = 133,320,010,735,046.75/13,148,701.76
  6. Step 6: Final answer
    x = 10,139,404.88

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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.