Home / 798,976,656.80-1,198,464,985.20-617,578,128.80

Finding the Fourth Proportional to 798,976,656.80, 1,198,464,985.20 and 617,578,128.80

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Solution

The fourth proportional to 798,976,656.80, 1,198,464,985.20 and 617,578,128.80 is: 926,367,193.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    798,976,656.80 : 1,198,464,985.20 = 617,578,128.80 : x
  2. Step 2: Convert to fraction form
    798,976,656.80/1,198,464,985.20 = 617,578,128.80/x
  3. Step 3: Cross multiply
    798,976,656.80x = 1,198,464,985.20 × 617,578,128.80
  4. Step 4: Simplify right side
    798,976,656.80x = 740,145,762,992,135,680
  5. Step 5: Solve for x
    x = 740,145,762,992,135,680/798,976,656.80
  6. Step 6: Final answer
    x = 926,367,193.20

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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.