Home / 15,216,110.53-20,985,988.72-13,376,635.77

Finding the Fourth Proportional to 15,216,110.53, 20,985,988.72 and 13,376,635.77

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Solution

The fourth proportional to 15,216,110.53, 20,985,988.72 and 13,376,635.77 is: 18,448,993.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216,110.53 : 20,985,988.72 = 13,376,635.77 : x
  2. Step 2: Convert to fraction form
    15,216,110.53/20,985,988.72 = 13,376,635.77/x
  3. Step 3: Cross multiply
    15,216,110.53x = 20,985,988.72 × 13,376,635.77
  4. Step 4: Simplify right side
    15,216,110.53x = 280,721,927,275,838.56
  5. Step 5: Solve for x
    x = 280,721,927,275,838.56/15,216,110.53
  6. Step 6: Final answer
    x = 18,448,993.70

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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.