Home / 112,786,987.28-169,147,660.12-43,684,378.39

Finding the Fourth Proportional to 112,786,987.28, 169,147,660.12 and 43,684,378.39

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Solution

The fourth proportional to 112,786,987.28, 169,147,660.12 and 43,684,378.39 is: 65,513,855.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,786,987.28 : 169,147,660.12 = 43,684,378.39 : x
  2. Step 2: Convert to fraction form
    112,786,987.28/169,147,660.12 = 43,684,378.39/x
  3. Step 3: Cross multiply
    112,786,987.28x = 169,147,660.12 × 43,684,378.39
  4. Step 4: Simplify right side
    112,786,987.28x = 7,389,110,387,933,114
  5. Step 5: Solve for x
    x = 7,389,110,387,933,114/112,786,987.28
  6. Step 6: Final answer
    x = 65,513,855.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.