Home / 861,941,462.52-1,292,912,210.95-206,892,488.86

Finding the Fourth Proportional to 861,941,462.52, 1,292,912,210.95 and 206,892,488.86

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Solution

The fourth proportional to 861,941,462.52, 1,292,912,210.95 and 206,892,488.86 is: 310,338,737.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,941,462.52 : 1,292,912,210.95 = 206,892,488.86 : x
  2. Step 2: Convert to fraction form
    861,941,462.52/1,292,912,210.95 = 206,892,488.86/x
  3. Step 3: Cross multiply
    861,941,462.52x = 1,292,912,210.95 × 206,892,488.86
  4. Step 4: Simplify right side
    861,941,462.52x = 267,493,825,197,181,312
  5. Step 5: Solve for x
    x = 267,493,825,197,181,312/861,941,462.52
  6. Step 6: Final answer
    x = 310,338,737.41

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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.