Home / 147,126,937.20-220,690,405.80-130,971,130.80

Finding the Fourth Proportional to 147,126,937.20, 220,690,405.80 and 130,971,130.80

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Solution

The fourth proportional to 147,126,937.20, 220,690,405.80 and 130,971,130.80 is: 196,456,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,126,937.20 : 220,690,405.80 = 130,971,130.80 : x
  2. Step 2: Convert to fraction form
    147,126,937.20/220,690,405.80 = 130,971,130.80/x
  3. Step 3: Cross multiply
    147,126,937.20x = 220,690,405.80 × 130,971,130.80
  4. Step 4: Simplify right side
    147,126,937.20x = 28,904,072,004,336,880
  5. Step 5: Solve for x
    x = 28,904,072,004,336,880/147,126,937.20
  6. Step 6: Final answer
    x = 196,456,696.20

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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.