Home / 861,941,434.57-1,292,912,169-206,892,460.90

Finding the Fourth Proportional to 861,941,434.57, 1,292,912,169 and 206,892,460.90

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Solution

The fourth proportional to 861,941,434.57, 1,292,912,169 and 206,892,460.90 is: 310,338,695.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,941,434.57 : 1,292,912,169 = 206,892,460.90 : x
  2. Step 2: Convert to fraction form
    861,941,434.57/1,292,912,169 = 206,892,460.90/x
  3. Step 3: Cross multiply
    861,941,434.57x = 1,292,912,169 × 206,892,460.90
  4. Step 4: Simplify right side
    861,941,434.57x = 267,493,780,371,966,688
  5. Step 5: Solve for x
    x = 267,493,780,371,966,688/861,941,434.57
  6. Step 6: Final answer
    x = 310,338,695.47

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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.