Home / 80,227,806.40-120,168,747.36-54,176,856.61

Finding the Fourth Proportional to 80,227,806.40, 120,168,747.36 and 54,176,856.61

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Solution

The fourth proportional to 80,227,806.40, 120,168,747.36 and 54,176,856.61 is: 81,148,485.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,227,806.40 : 120,168,747.36 = 54,176,856.61 : x
  2. Step 2: Convert to fraction form
    80,227,806.40/120,168,747.36 = 54,176,856.61/x
  3. Step 3: Cross multiply
    80,227,806.40x = 120,168,747.36 × 54,176,856.61
  4. Step 4: Simplify right side
    80,227,806.40x = 6,510,364,994,160,899
  5. Step 5: Solve for x
    x = 6,510,364,994,160,899/80,227,806.40
  6. Step 6: Final answer
    x = 81,148,485.63

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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.