Home / 15,216,117.47-20,985,998.30-13,376,642.71

Finding the Fourth Proportional to 15,216,117.47, 20,985,998.30 and 13,376,642.71

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Solution

The fourth proportional to 15,216,117.47, 20,985,998.30 and 13,376,642.71 is: 18,449,003.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216,117.47 : 20,985,998.30 = 13,376,642.71 : x
  2. Step 2: Convert to fraction form
    15,216,117.47/20,985,998.30 = 13,376,642.71/x
  3. Step 3: Cross multiply
    15,216,117.47x = 20,985,998.30 × 13,376,642.71
  4. Step 4: Simplify right side
    15,216,117.47x = 280,722,201,171,767.41
  5. Step 5: Solve for x
    x = 280,722,201,171,767.41/15,216,117.47
  6. Step 6: Final answer
    x = 18,449,003.28

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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.