Home / 28,085,311.88-38,757,873.78-15,695,612.12

Finding the Fourth Proportional to 28,085,311.88, 38,757,873.78 and 15,695,612.12

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Solution

The fourth proportional to 28,085,311.88, 38,757,873.78 and 15,695,612.12 is: 21,660,024.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,085,311.88 : 38,757,873.78 = 15,695,612.12 : x
  2. Step 2: Convert to fraction form
    28,085,311.88/38,757,873.78 = 15,695,612.12/x
  3. Step 3: Cross multiply
    28,085,311.88x = 38,757,873.78 × 15,695,612.12
  4. Step 4: Simplify right side
    28,085,311.88x = 608,328,553,446,798.25
  5. Step 5: Solve for x
    x = 608,328,553,446,798.25/28,085,311.88
  6. Step 6: Final answer
    x = 21,660,024.86

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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.