Home / 15,012,124.16-20,718,649.96-8,397,080.24

Finding the Fourth Proportional to 15,012,124.16, 20,718,649.96 and 8,397,080.24

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Solution

The fourth proportional to 15,012,124.16, 20,718,649.96 and 8,397,080.24 is: 11,589,043.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012,124.16 : 20,718,649.96 = 8,397,080.24 : x
  2. Step 2: Convert to fraction form
    15,012,124.16/20,718,649.96 = 8,397,080.24/x
  3. Step 3: Cross multiply
    15,012,124.16x = 20,718,649.96 × 8,397,080.24
  4. Step 4: Simplify right side
    15,012,124.16x = 173,976,166,178,592.81
  5. Step 5: Solve for x
    x = 173,976,166,178,592.81/15,012,124.16
  6. Step 6: Final answer
    x = 11,589,043.92

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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.