Home / 15,216,116.24-20,985,996.59-13,376,641.47

Finding the Fourth Proportional to 15,216,116.24, 20,985,996.59 and 13,376,641.47

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Solution

The fourth proportional to 15,216,116.24, 20,985,996.59 and 13,376,641.47 is: 18,449,001.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216,116.24 : 20,985,996.59 = 13,376,641.47 : x
  2. Step 2: Convert to fraction form
    15,216,116.24/20,985,996.59 = 13,376,641.47/x
  3. Step 3: Cross multiply
    15,216,116.24x = 20,985,996.59 × 13,376,641.47
  4. Step 4: Simplify right side
    15,216,116.24x = 280,722,152,208,189.41
  5. Step 5: Solve for x
    x = 280,722,152,208,189.41/15,216,116.24
  6. Step 6: Final answer
    x = 18,449,001.56

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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.