Home / 71,090,819.20-106,636,228.80-65,548,086.40

Finding the Fourth Proportional to 71,090,819.20, 106,636,228.80 and 65,548,086.40

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Solution

The fourth proportional to 71,090,819.20, 106,636,228.80 and 65,548,086.40 is: 98,322,129.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,090,819.20 : 106,636,228.80 = 65,548,086.40 : x
  2. Step 2: Convert to fraction form
    71,090,819.20/106,636,228.80 = 65,548,086.40/x
  3. Step 3: Cross multiply
    71,090,819.20x = 106,636,228.80 × 65,548,086.40
  4. Step 4: Simplify right side
    71,090,819.20x = 6,989,800,738,752,568
  5. Step 5: Solve for x
    x = 6,989,800,738,752,568/71,090,819.20
  6. Step 6: Final answer
    x = 98,322,129.60

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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.