Home / 67,221,812.20-100,664,756.70-53,784,884.20

Finding the Fourth Proportional to 67,221,812.20, 100,664,756.70 and 53,784,884.20

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Solution

The fourth proportional to 67,221,812.20, 100,664,756.70 and 53,784,884.20 is: 80,542,938.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,221,812.20 : 100,664,756.70 = 53,784,884.20 : x
  2. Step 2: Convert to fraction form
    67,221,812.20/100,664,756.70 = 53,784,884.20/x
  3. Step 3: Cross multiply
    67,221,812.20x = 100,664,756.70 × 53,784,884.20
  4. Step 4: Simplify right side
    67,221,812.20x = 5,414,242,282,130,675
  5. Step 5: Solve for x
    x = 5,414,242,282,130,675/67,221,812.20
  6. Step 6: Final answer
    x = 80,542,938.44

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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.