Home / 5,178,929,470.38-7,146,909,226.56-2,890,037,680.92

Finding the Fourth Proportional to 5,178,929,470.38, 7,146,909,226.56 and 2,890,037,680.92

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Solution

The fourth proportional to 5,178,929,470.38, 7,146,909,226.56 and 2,890,037,680.92 is: 3,988,244,498.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,178,929,470.38 : 7,146,909,226.56 = 2,890,037,680.92 : x
  2. Step 2: Convert to fraction form
    5,178,929,470.38/7,146,909,226.56 = 2,890,037,680.92/x
  3. Step 3: Cross multiply
    5,178,929,470.38x = 7,146,909,226.56 × 2,890,037,680.92
  4. Step 4: Simplify right side
    5,178,929,470.38x = 20,654,836,966,873,214,976
  5. Step 5: Solve for x
    x = 20,654,836,966,873,214,976/5,178,929,470.38
  6. Step 6: Final answer
    x = 3,988,244,498.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.