Home / 826,095,146.20-1,239,142,719.30-280,836,680.20

Finding the Fourth Proportional to 826,095,146.20, 1,239,142,719.30 and 280,836,680.20

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Solution

The fourth proportional to 826,095,146.20, 1,239,142,719.30 and 280,836,680.20 is: 421,255,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,095,146.20 : 1,239,142,719.30 = 280,836,680.20 : x
  2. Step 2: Convert to fraction form
    826,095,146.20/1,239,142,719.30 = 280,836,680.20/x
  3. Step 3: Cross multiply
    826,095,146.20x = 1,239,142,719.30 × 280,836,680.20
  4. Step 4: Simplify right side
    826,095,146.20x = 347,996,727,582,212,416
  5. Step 5: Solve for x
    x = 347,996,727,582,212,416/826,095,146.20
  6. Step 6: Final answer
    x = 421,255,020.30

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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.