Home / 15,216,113.23-20,985,992.45-13,376,638.47

Finding the Fourth Proportional to 15,216,113.23, 20,985,992.45 and 13,376,638.47

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Solution

The fourth proportional to 15,216,113.23, 20,985,992.45 and 13,376,638.47 is: 18,448,997.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216,113.23 : 20,985,992.45 = 13,376,638.47 : x
  2. Step 2: Convert to fraction form
    15,216,113.23/20,985,992.45 = 13,376,638.47/x
  3. Step 3: Cross multiply
    15,216,113.23x = 20,985,992.45 × 13,376,638.47
  4. Step 4: Simplify right side
    15,216,113.23x = 280,722,033,919,358.53
  5. Step 5: Solve for x
    x = 280,722,033,919,358.53/15,216,113.23
  6. Step 6: Final answer
    x = 18,448,997.43

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1.5x scale

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.