Home / 78,319,853.68-107,944,587.72-57,367,372.36

Finding the Fourth Proportional to 78,319,853.68, 107,944,587.72 and 57,367,372.36

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Solution

The fourth proportional to 78,319,853.68, 107,944,587.72 and 57,367,372.36 is: 79,066,763.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,319,853.68 : 107,944,587.72 = 57,367,372.36 : x
  2. Step 2: Convert to fraction form
    78,319,853.68/107,944,587.72 = 57,367,372.36/x
  3. Step 3: Cross multiply
    78,319,853.68x = 107,944,587.72 × 57,367,372.36
  4. Step 4: Simplify right side
    78,319,853.68x = 6,192,497,357,979,923
  5. Step 5: Solve for x
    x = 6,192,497,357,979,923/78,319,853.68
  6. Step 6: Final answer
    x = 79,066,763.62

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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.