Home / 872,387,309.80-1,306,988,439.90-531,587,002.60

Finding the Fourth Proportional to 872,387,309.80, 1,306,988,439.90 and 531,587,002.60

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Solution

The fourth proportional to 872,387,309.80, 1,306,988,439.90 and 531,587,002.60 is: 796,410,102.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,387,309.80 : 1,306,988,439.90 = 531,587,002.60 : x
  2. Step 2: Convert to fraction form
    872,387,309.80/1,306,988,439.90 = 531,587,002.60/x
  3. Step 3: Cross multiply
    872,387,309.80x = 1,306,988,439.90 × 531,587,002.60
  4. Step 4: Simplify right side
    872,387,309.80x = 694,778,067,199,291,264
  5. Step 5: Solve for x
    x = 694,778,067,199,291,264/872,387,309.80
  6. Step 6: Final answer
    x = 796,410,102.94

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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.