Home / 28,664,077.50-39,555,836.46-15,611,565.78

Finding the Fourth Proportional to 28,664,077.50, 39,555,836.46 and 15,611,565.78

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Solution

The fourth proportional to 28,664,077.50, 39,555,836.46 and 15,611,565.78 is: 21,543,639.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,664,077.50 : 39,555,836.46 = 15,611,565.78 : x
  2. Step 2: Convert to fraction form
    28,664,077.50/39,555,836.46 = 15,611,565.78/x
  3. Step 3: Cross multiply
    28,664,077.50x = 39,555,836.46 × 15,611,565.78
  4. Step 4: Simplify right side
    28,664,077.50x = 617,528,542,878,212.38
  5. Step 5: Solve for x
    x = 617,528,542,878,212.38/28,664,077.50
  6. Step 6: Final answer
    x = 21,543,639.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.