Home / 28,551,644.12-42,843,663.76-15,420,899.54

Finding the Fourth Proportional to 28,551,644.12, 42,843,663.76 and 15,420,899.54

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Solution

The fourth proportional to 28,551,644.12, 42,843,663.76 and 15,420,899.54 is: 23,140,097.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,551,644.12 : 42,843,663.76 = 15,420,899.54 : x
  2. Step 2: Convert to fraction form
    28,551,644.12/42,843,663.76 = 15,420,899.54/x
  3. Step 3: Cross multiply
    28,551,644.12x = 42,843,663.76 × 15,420,899.54
  4. Step 4: Simplify right side
    28,551,644.12x = 660,687,834,768,498.62
  5. Step 5: Solve for x
    x = 660,687,834,768,498.62/28,551,644.12
  6. Step 6: Final answer
    x = 23,140,097.71

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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.