Home / 28,420,083.18-39,219,687.16-15,367,310.86

Finding the Fourth Proportional to 28,420,083.18, 39,219,687.16 and 15,367,310.86

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Solution

The fourth proportional to 28,420,083.18, 39,219,687.16 and 15,367,310.86 is: 21,206,874.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,420,083.18 : 39,219,687.16 = 15,367,310.86 : x
  2. Step 2: Convert to fraction form
    28,420,083.18/39,219,687.16 = 15,367,310.86/x
  3. Step 3: Cross multiply
    28,420,083.18x = 39,219,687.16 × 15,367,310.86
  4. Step 4: Simplify right side
    28,420,083.18x = 602,701,124,419,670.50
  5. Step 5: Solve for x
    x = 602,701,124,419,670.50/28,420,083.18
  6. Step 6: Final answer
    x = 21,206,874.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.