Home / 209,398,930.38-288,895,725.90-121,244,809.50

Finding the Fourth Proportional to 209,398,930.38, 288,895,725.90 and 121,244,809.50

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Solution

The fourth proportional to 209,398,930.38, 288,895,725.90 and 121,244,809.50 is: 167,274,528.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,398,930.38 : 288,895,725.90 = 121,244,809.50 : x
  2. Step 2: Convert to fraction form
    209,398,930.38/288,895,725.90 = 121,244,809.50/x
  3. Step 3: Cross multiply
    209,398,930.38x = 288,895,725.90 × 121,244,809.50
  4. Step 4: Simplify right side
    209,398,930.38x = 35,027,107,252,109,712
  5. Step 5: Solve for x
    x = 35,027,107,252,109,712/209,398,930.38
  6. Step 6: Final answer
    x = 167,274,528.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.