Home / 112,786,987.29-169,147,660.11-43,684,378.40

Finding the Fourth Proportional to 112,786,987.29, 169,147,660.11 and 43,684,378.40

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Solution

The fourth proportional to 112,786,987.29, 169,147,660.11 and 43,684,378.40 is: 65,513,855.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,786,987.29 : 169,147,660.11 = 43,684,378.40 : x
  2. Step 2: Convert to fraction form
    112,786,987.29/169,147,660.11 = 43,684,378.40/x
  3. Step 3: Cross multiply
    112,786,987.29x = 169,147,660.11 × 43,684,378.40
  4. Step 4: Simplify right side
    112,786,987.29x = 7,389,110,388,874,089
  5. Step 5: Solve for x
    x = 7,389,110,388,874,089/112,786,987.29
  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.