Home / 28,305,437.60-42,414,610.80-21,083,088.80

Finding the Fourth Proportional to 28,305,437.60, 42,414,610.80 and 21,083,088.80

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Solution

The fourth proportional to 28,305,437.60, 42,414,610.80 and 21,083,088.80 is: 31,592,198.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,305,437.60 : 42,414,610.80 = 21,083,088.80 : x
  2. Step 2: Convert to fraction form
    28,305,437.60/42,414,610.80 = 21,083,088.80/x
  3. Step 3: Cross multiply
    28,305,437.60x = 42,414,610.80 × 21,083,088.80
  4. Step 4: Simplify right side
    28,305,437.60x = 894,231,005,913,839
  5. Step 5: Solve for x
    x = 894,231,005,913,839/28,305,437.60
  6. Step 6: Final answer
    x = 31,592,198.59

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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.