Home / 806,168,935.86-1,209,445,305.84-260,910,469.86

Finding the Fourth Proportional to 806,168,935.86, 1,209,445,305.84 and 260,910,469.86

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Solution

The fourth proportional to 806,168,935.86, 1,209,445,305.84 and 260,910,469.86 is: 391,427,812.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,168,935.86 : 1,209,445,305.84 = 260,910,469.86 : x
  2. Step 2: Convert to fraction form
    806,168,935.86/1,209,445,305.84 = 260,910,469.86/x
  3. Step 3: Cross multiply
    806,168,935.86x = 1,209,445,305.84 × 260,910,469.86
  4. Step 4: Simplify right side
    806,168,935.86x = 315,556,943,016,685,824
  5. Step 5: Solve for x
    x = 315,556,943,016,685,824/806,168,935.86
  6. Step 6: Final answer
    x = 391,427,812.43

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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.