Home / 185,530,860.72-278,286,055.92-76,328,395.74

Finding the Fourth Proportional to 185,530,860.72, 278,286,055.92 and 76,328,395.74

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Solution

The fourth proportional to 185,530,860.72, 278,286,055.92 and 76,328,395.74 is: 114,488,382.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,530,860.72 : 278,286,055.92 = 76,328,395.74 : x
  2. Step 2: Convert to fraction form
    185,530,860.72/278,286,055.92 = 76,328,395.74/x
  3. Step 3: Cross multiply
    185,530,860.72x = 278,286,055.92 × 76,328,395.74
  4. Step 4: Simplify right side
    185,530,860.72x = 21,241,128,205,185,528
  5. Step 5: Solve for x
    x = 21,241,128,205,185,528/185,530,860.72
  6. Step 6: Final answer
    x = 114,488,382.81

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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.