Home / 78,074,945.04-107,743,704.66-43,268,227.68

Finding the Fourth Proportional to 78,074,945.04, 107,743,704.66 and 43,268,227.68

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Solution

The fourth proportional to 78,074,945.04, 107,743,704.66 and 43,268,227.68 is: 59,710,309.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,074,945.04 : 107,743,704.66 = 43,268,227.68 : x
  2. Step 2: Convert to fraction form
    78,074,945.04/107,743,704.66 = 43,268,227.68/x
  3. Step 3: Cross multiply
    78,074,945.04x = 107,743,704.66 × 43,268,227.68
  4. Step 4: Simplify right side
    78,074,945.04x = 4,661,879,144,315,557
  5. Step 5: Solve for x
    x = 4,661,879,144,315,557/78,074,945.04
  6. Step 6: Final answer
    x = 59,710,309.65

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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.