Home / 861,941,493.63-1,292,912,257.59-206,892,519.93

Finding the Fourth Proportional to 861,941,493.63, 1,292,912,257.59 and 206,892,519.93

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Solution

The fourth proportional to 861,941,493.63, 1,292,912,257.59 and 206,892,519.93 is: 310,338,784.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    861,941,493.63 : 1,292,912,257.59 = 206,892,519.93 : x
  2. Step 2: Convert to fraction form
    861,941,493.63/1,292,912,257.59 = 206,892,519.93/x
  3. Step 3: Cross multiply
    861,941,493.63x = 1,292,912,257.59 × 206,892,519.93
  4. Step 4: Simplify right side
    861,941,493.63x = 267,493,875,021,180,352
  5. Step 5: Solve for x
    x = 267,493,875,021,180,352/861,941,493.63
  6. Step 6: Final answer
    x = 310,338,784.01

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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.