Home / 28,134,329.70-42,195,589.57-7,934,847.78

Finding the Fourth Proportional to 28,134,329.70, 42,195,589.57 and 7,934,847.78

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Solution

The fourth proportional to 28,134,329.70, 42,195,589.57 and 7,934,847.78 is: 11,900,606.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134,329.70 : 42,195,589.57 = 7,934,847.78 : x
  2. Step 2: Convert to fraction form
    28,134,329.70/42,195,589.57 = 7,934,847.78/x
  3. Step 3: Cross multiply
    28,134,329.70x = 42,195,589.57 × 7,934,847.78
  4. Step 4: Simplify right side
    28,134,329.70x = 334,815,580,205,468.56
  5. Step 5: Solve for x
    x = 334,815,580,205,468.56/28,134,329.70
  6. Step 6: Final answer
    x = 11,900,606.26

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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.