Home / 80,402,876.73-120,600,323.78-25,818,134.49

Finding the Fourth Proportional to 80,402,876.73, 120,600,323.78 and 25,818,134.49

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Solution

The fourth proportional to 80,402,876.73, 120,600,323.78 and 25,818,134.49 is: 38,725,920.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,402,876.73 : 120,600,323.78 = 25,818,134.49 : x
  2. Step 2: Convert to fraction form
    80,402,876.73/120,600,323.78 = 25,818,134.49/x
  3. Step 3: Cross multiply
    80,402,876.73x = 120,600,323.78 × 25,818,134.49
  4. Step 4: Simplify right side
    80,402,876.73x = 3,113,675,378,760,494.50
  5. Step 5: Solve for x
    x = 3,113,675,378,760,494.50/80,402,876.73
  6. Step 6: Final answer
    x = 38,725,920.08

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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.