Home / 28,082,867.80-42,124,301.70-15,947,642.20

Finding the Fourth Proportional to 28,082,867.80, 42,124,301.70 and 15,947,642.20

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Solution

The fourth proportional to 28,082,867.80, 42,124,301.70 and 15,947,642.20 is: 23,921,463.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,082,867.80 : 42,124,301.70 = 15,947,642.20 : x
  2. Step 2: Convert to fraction form
    28,082,867.80/42,124,301.70 = 15,947,642.20/x
  3. Step 3: Cross multiply
    28,082,867.80x = 42,124,301.70 × 15,947,642.20
  4. Step 4: Simplify right side
    28,082,867.80x = 671,783,291,436,451.75
  5. Step 5: Solve for x
    x = 671,783,291,436,451.75/28,082,867.80
  6. Step 6: Final answer
    x = 23,921,463.30

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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.