Home / 28,510,045.75-42,777,780.56-13,149,071.70

Finding the Fourth Proportional to 28,510,045.75, 42,777,780.56 and 13,149,071.70

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Solution

The fourth proportional to 28,510,045.75, 42,777,780.56 and 13,149,071.70 is: 19,729,470.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,510,045.75 : 42,777,780.56 = 13,149,071.70 : x
  2. Step 2: Convert to fraction form
    28,510,045.75/42,777,780.56 = 13,149,071.70/x
  3. Step 3: Cross multiply
    28,510,045.75x = 42,777,780.56 × 13,149,071.70
  4. Step 4: Simplify right side
    28,510,045.75x = 562,488,103,750,306.12
  5. Step 5: Solve for x
    x = 562,488,103,750,306.12/28,510,045.75
  6. Step 6: Final answer
    x = 19,729,470.40

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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.