Home / 28,540,150.38-39,385,514.61-15,487,411.98

Finding the Fourth Proportional to 28,540,150.38, 39,385,514.61 and 15,487,411.98

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Solution

The fourth proportional to 28,540,150.38, 39,385,514.61 and 15,487,411.98 is: 21,372,686.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,540,150.38 : 39,385,514.61 = 15,487,411.98 : x
  2. Step 2: Convert to fraction form
    28,540,150.38/39,385,514.61 = 15,487,411.98/x
  3. Step 3: Cross multiply
    28,540,150.38x = 39,385,514.61 × 15,487,411.98
  4. Step 4: Simplify right side
    28,540,150.38x = 609,979,690,809,379
  5. Step 5: Solve for x
    x = 609,979,690,809,379/28,540,150.38
  6. Step 6: Final answer
    x = 21,372,686.64

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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.