Home / 131,313,124.80-196,969,687.20-40,464,561.60

Finding the Fourth Proportional to 131,313,124.80, 196,969,687.20 and 40,464,561.60

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Solution

The fourth proportional to 131,313,124.80, 196,969,687.20 and 40,464,561.60 is: 60,696,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,313,124.80 : 196,969,687.20 = 40,464,561.60 : x
  2. Step 2: Convert to fraction form
    131,313,124.80/196,969,687.20 = 40,464,561.60/x
  3. Step 3: Cross multiply
    131,313,124.80x = 196,969,687.20 × 40,464,561.60
  4. Step 4: Simplify right side
    131,313,124.80x = 7,970,292,041,037,131
  5. Step 5: Solve for x
    x = 7,970,292,041,037,131/131,313,124.80
  6. Step 6: Final answer
    x = 60,696,842.40

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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.