Home / 28,496,299.50-42,744,449.25-12,539,947.50

Finding the Fourth Proportional to 28,496,299.50, 42,744,449.25 and 12,539,947.50

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Solution

The fourth proportional to 28,496,299.50, 42,744,449.25 and 12,539,947.50 is: 18,809,921.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,496,299.50 : 42,744,449.25 = 12,539,947.50 : x
  2. Step 2: Convert to fraction form
    28,496,299.50/42,744,449.25 = 12,539,947.50/x
  3. Step 3: Cross multiply
    28,496,299.50x = 42,744,449.25 × 12,539,947.50
  4. Step 4: Simplify right side
    28,496,299.50x = 536,013,149,511,414.38
  5. Step 5: Solve for x
    x = 536,013,149,511,414.38/28,496,299.50
  6. Step 6: Final answer
    x = 18,809,921.25

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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.