Home / 28,082,821.80-42,124,232.70-15,947,596.20

Finding the Fourth Proportional to 28,082,821.80, 42,124,232.70 and 15,947,596.20

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Solution

The fourth proportional to 28,082,821.80, 42,124,232.70 and 15,947,596.20 is: 23,921,394.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,821.80 : 42,124,232.70 = 15,947,596.20 : x
  2. Step 2: Convert to fraction form
    28,082,821.80/42,124,232.70 = 15,947,596.20/x
  3. Step 3: Cross multiply
    28,082,821.80x = 42,124,232.70 × 15,947,596.20
  4. Step 4: Simplify right side
    28,082,821.80x = 671,780,253,334,435.75
  5. Step 5: Solve for x
    x = 671,780,253,334,435.75/28,082,821.80
  6. Step 6: Final answer
    x = 23,921,394.30

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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.