Home / 83,878,600.20-125,674,214.40-66,659,911.80

Finding the Fourth Proportional to 83,878,600.20, 125,674,214.40 and 66,659,911.80

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Solution

The fourth proportional to 83,878,600.20, 125,674,214.40 and 66,659,911.80 is: 99,875,677.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,878,600.20 : 125,674,214.40 = 66,659,911.80 : x
  2. Step 2: Convert to fraction form
    83,878,600.20/125,674,214.40 = 66,659,911.80/x
  3. Step 3: Cross multiply
    83,878,600.20x = 125,674,214.40 × 66,659,911.80
  4. Step 4: Simplify right side
    83,878,600.20x = 8,377,432,047,438,290
  5. Step 5: Solve for x
    x = 8,377,432,047,438,290/83,878,600.20
  6. Step 6: Final answer
    x = 99,875,677.79

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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.