Home / 72,770,132.70-109,155,199.05-69,900,351.30

Finding the Fourth Proportional to 72,770,132.70, 109,155,199.05 and 69,900,351.30

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Solution

The fourth proportional to 72,770,132.70, 109,155,199.05 and 69,900,351.30 is: 104,850,526.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,770,132.70 : 109,155,199.05 = 69,900,351.30 : x
  2. Step 2: Convert to fraction form
    72,770,132.70/109,155,199.05 = 69,900,351.30/x
  3. Step 3: Cross multiply
    72,770,132.70x = 109,155,199.05 × 69,900,351.30
  4. Step 4: Simplify right side
    72,770,132.70x = 7,629,986,759,816,426
  5. Step 5: Solve for x
    x = 7,629,986,759,816,426/72,770,132.70
  6. Step 6: Final answer
    x = 104,850,526.95

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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.