Home / 14,990,739.24-20,687,287.25-8,115,221.31

Finding the Fourth Proportional to 14,990,739.24, 20,687,287.25 and 8,115,221.31

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Solution

The fourth proportional to 14,990,739.24, 20,687,287.25 and 8,115,221.31 is: 11,199,041.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,990,739.24 : 20,687,287.25 = 8,115,221.31 : x
  2. Step 2: Convert to fraction form
    14,990,739.24/20,687,287.25 = 8,115,221.31/x
  3. Step 3: Cross multiply
    14,990,739.24x = 20,687,287.25 × 8,115,221.31
  4. Step 4: Simplify right side
    14,990,739.24x = 167,881,914,337,291.28
  5. Step 5: Solve for x
    x = 167,881,914,337,291.28/14,990,739.24
  6. Step 6: Final answer
    x = 11,199,041.73

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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.