Home / 15,071,908.64-20,799,373.20-8,196,455.84

Finding the Fourth Proportional to 15,071,908.64, 20,799,373.20 and 8,196,455.84

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Solution

The fourth proportional to 15,071,908.64, 20,799,373.20 and 8,196,455.84 is: 11,311,184.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,071,908.64 : 20,799,373.20 = 8,196,455.84 : x
  2. Step 2: Convert to fraction form
    15,071,908.64/20,799,373.20 = 8,196,455.84/x
  3. Step 3: Cross multiply
    15,071,908.64x = 20,799,373.20 × 8,196,455.84
  4. Step 4: Simplify right side
    15,071,908.64x = 170,481,143,933,479.47
  5. Step 5: Solve for x
    x = 170,481,143,933,479.47/15,071,908.64
  6. Step 6: Final answer
    x = 11,311,184.80

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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.