Home / 209,952,206.80-314,928,310.20-129,218,664.40

Finding the Fourth Proportional to 209,952,206.80, 314,928,310.20 and 129,218,664.40

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Solution

The fourth proportional to 209,952,206.80, 314,928,310.20 and 129,218,664.40 is: 193,827,996.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,952,206.80 : 314,928,310.20 = 129,218,664.40 : x
  2. Step 2: Convert to fraction form
    209,952,206.80/314,928,310.20 = 129,218,664.40/x
  3. Step 3: Cross multiply
    209,952,206.80x = 314,928,310.20 × 129,218,664.40
  4. Step 4: Simplify right side
    209,952,206.80x = 40,694,615,625,792,896
  5. Step 5: Solve for x
    x = 40,694,615,625,792,896/209,952,206.80
  6. Step 6: Final answer
    x = 193,827,996.60

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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.