Home / 861,941,603.64-1,292,912,422.38-206,892,629.76

Finding the Fourth Proportional to 861,941,603.64, 1,292,912,422.38 and 206,892,629.76

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Solution

The fourth proportional to 861,941,603.64, 1,292,912,422.38 and 206,892,629.76 is: 310,338,948.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,941,603.64 : 1,292,912,422.38 = 206,892,629.76 : x
  2. Step 2: Convert to fraction form
    861,941,603.64/1,292,912,422.38 = 206,892,629.76/x
  3. Step 3: Cross multiply
    861,941,603.64x = 1,292,912,422.38 × 206,892,629.76
  4. Step 4: Simplify right side
    861,941,603.64x = 267,494,051,115,570,080
  5. Step 5: Solve for x
    x = 267,494,051,115,570,080/861,941,603.64
  6. Step 6: Final answer
    x = 310,338,948.70

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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.