Home / 28,454,895.18-42,689,133-9,285,687.90

Finding the Fourth Proportional to 28,454,895.18, 42,689,133 and 9,285,687.90

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Solution

The fourth proportional to 28,454,895.18, 42,689,133 and 9,285,687.90 is: 13,930,747.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454,895.18 : 42,689,133 = 9,285,687.90 : x
  2. Step 2: Convert to fraction form
    28,454,895.18/42,689,133 = 9,285,687.90/x
  3. Step 3: Cross multiply
    28,454,895.18x = 42,689,133 × 9,285,687.90
  4. Step 4: Simplify right side
    28,454,895.18x = 396,397,965,759,590.69
  5. Step 5: Solve for x
    x = 396,397,965,759,590.69/28,454,895.18
  6. Step 6: Final answer
    x = 13,930,747.71

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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.