Home / 808,323,418.80-1,212,485,128.20-726,694,081.20

Finding the Fourth Proportional to 808,323,418.80, 1,212,485,128.20 and 726,694,081.20

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Solution

The fourth proportional to 808,323,418.80, 1,212,485,128.20 and 726,694,081.20 is: 1,090,041,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,323,418.80 : 1,212,485,128.20 = 726,694,081.20 : x
  2. Step 2: Convert to fraction form
    808,323,418.80/1,212,485,128.20 = 726,694,081.20/x
  3. Step 3: Cross multiply
    808,323,418.80x = 1,212,485,128.20 × 726,694,081.20
  4. Step 4: Simplify right side
    808,323,418.80x = 881,105,766,205,963,264
  5. Step 5: Solve for x
    x = 881,105,766,205,963,264/808,323,418.80
  6. Step 6: Final answer
    x = 1,090,041,121.80

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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.