Home / 78,074,948.04-107,743,708.80-43,268,230.68

Finding the Fourth Proportional to 78,074,948.04, 107,743,708.80 and 43,268,230.68

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Solution

The fourth proportional to 78,074,948.04, 107,743,708.80 and 43,268,230.68 is: 59,710,313.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,074,948.04 : 107,743,708.80 = 43,268,230.68 : x
  2. Step 2: Convert to fraction form
    78,074,948.04/107,743,708.80 = 43,268,230.68/x
  3. Step 3: Cross multiply
    78,074,948.04x = 107,743,708.80 × 43,268,230.68
  4. Step 4: Simplify right side
    78,074,948.04x = 4,661,879,646,677,146
  5. Step 5: Solve for x
    x = 4,661,879,646,677,146/78,074,948.04
  6. Step 6: Final answer
    x = 59,710,313.79

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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.