Home / 1,275,540,837.60-1,760,246,345.52-688,829,921.76

Finding the Fourth Proportional to 1,275,540,837.60, 1,760,246,345.52 and 688,829,921.76

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Solution

The fourth proportional to 1,275,540,837.60, 1,760,246,345.52 and 688,829,921.76 is: 950,585,286.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,275,540,837.60 : 1,760,246,345.52 = 688,829,921.76 : x
  2. Step 2: Convert to fraction form
    1,275,540,837.60/1,760,246,345.52 = 688,829,921.76/x
  3. Step 3: Cross multiply
    1,275,540,837.60x = 1,760,246,345.52 × 688,829,921.76
  4. Step 4: Simplify right side
    1,275,540,837.60x = 1,212,510,352,462,867,456
  5. Step 5: Solve for x
    x = 1,212,510,352,462,867,456/1,275,540,837.60
  6. Step 6: Final answer
    x = 950,585,286.43

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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.