Home / 28,454,897.18-42,689,136-9,285,689.90

Finding the Fourth Proportional to 28,454,897.18, 42,689,136 and 9,285,689.90

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Solution

The fourth proportional to 28,454,897.18, 42,689,136 and 9,285,689.90 is: 13,930,750.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,454,897.18 : 42,689,136 = 9,285,689.90 : x
  2. Step 2: Convert to fraction form
    28,454,897.18/42,689,136 = 9,285,689.90/x
  3. Step 3: Cross multiply
    28,454,897.18x = 42,689,136 × 9,285,689.90
  4. Step 4: Simplify right side
    28,454,897.18x = 396,398,078,994,926.44
  5. Step 5: Solve for x
    x = 396,398,078,994,926.44/28,454,897.18
  6. Step 6: Final answer
    x = 13,930,750.71

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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.