Home / 28,040,810.40-42,061,215.60-15,947,575.20

Finding the Fourth Proportional to 28,040,810.40, 42,061,215.60 and 15,947,575.20

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Solution

The fourth proportional to 28,040,810.40, 42,061,215.60 and 15,947,575.20 is: 23,921,362.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,040,810.40 : 42,061,215.60 = 15,947,575.20 : x
  2. Step 2: Convert to fraction form
    28,040,810.40/42,061,215.60 = 15,947,575.20/x
  3. Step 3: Cross multiply
    28,040,810.40x = 42,061,215.60 × 15,947,575.20
  4. Step 4: Simplify right side
    28,040,810.40x = 670,774,398,784,413.12
  5. Step 5: Solve for x
    x = 670,774,398,784,413.12/28,040,810.40
  6. Step 6: Final answer
    x = 23,921,362.80

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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.