Home / 78,386,036.24-108,173,149.56-43,106,115.92

Finding the Fourth Proportional to 78,386,036.24, 108,173,149.56 and 43,106,115.92

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Solution

The fourth proportional to 78,386,036.24, 108,173,149.56 and 43,106,115.92 is: 59,486,670.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,386,036.24 : 108,173,149.56 = 43,106,115.92 : x
  2. Step 2: Convert to fraction form
    78,386,036.24/108,173,149.56 = 43,106,115.92/x
  3. Step 3: Cross multiply
    78,386,036.24x = 108,173,149.56 × 43,106,115.92
  4. Step 4: Simplify right side
    78,386,036.24x = 4,662,924,324,364,857
  5. Step 5: Solve for x
    x = 4,662,924,324,364,857/78,386,036.24
  6. Step 6: Final answer
    x = 59,486,670.69

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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.