Home / 84,492,766.80-126,739,150.20-54,259,678.80

Finding the Fourth Proportional to 84,492,766.80, 126,739,150.20 and 54,259,678.80

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Solution

The fourth proportional to 84,492,766.80, 126,739,150.20 and 54,259,678.80 is: 81,389,518.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,492,766.80 : 126,739,150.20 = 54,259,678.80 : x
  2. Step 2: Convert to fraction form
    84,492,766.80/126,739,150.20 = 54,259,678.80/x
  3. Step 3: Cross multiply
    84,492,766.80x = 126,739,150.20 × 54,259,678.80
  4. Step 4: Simplify right side
    84,492,766.80x = 6,876,825,581,236,956
  5. Step 5: Solve for x
    x = 6,876,825,581,236,956/84,492,766.80
  6. Step 6: Final answer
    x = 81,389,518.20

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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.