Home / 145,044,098.74-200,162,067.33-78,965,056.95

Finding the Fourth Proportional to 145,044,098.74, 200,162,067.33 and 78,965,056.95

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Solution

The fourth proportional to 145,044,098.74, 200,162,067.33 and 78,965,056.95 is: 108,972,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,044,098.74 : 200,162,067.33 = 78,965,056.95 : x
  2. Step 2: Convert to fraction form
    145,044,098.74/200,162,067.33 = 78,965,056.95/x
  3. Step 3: Cross multiply
    145,044,098.74x = 200,162,067.33 × 78,965,056.95
  4. Step 4: Simplify right side
    145,044,098.74x = 15,805,809,045,488,698
  5. Step 5: Solve for x
    x = 15,805,809,045,488,698/145,044,098.74
  6. Step 6: Final answer
    x = 108,972,437.92

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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.