Home / 398,641,354.98-550,126,590.72-222,436,777.02

Finding the Fourth Proportional to 398,641,354.98, 550,126,590.72 and 222,436,777.02

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Solution

The fourth proportional to 398,641,354.98, 550,126,590.72 and 222,436,777.02 is: 306,963,600.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,641,354.98 : 550,126,590.72 = 222,436,777.02 : x
  2. Step 2: Convert to fraction form
    398,641,354.98/550,126,590.72 = 222,436,777.02/x
  3. Step 3: Cross multiply
    398,641,354.98x = 550,126,590.72 × 222,436,777.02
  4. Step 4: Simplify right side
    398,641,354.98x = 122,368,385,791,645,264
  5. Step 5: Solve for x
    x = 122,368,385,791,645,264/398,641,354.98
  6. Step 6: Final answer
    x = 306,963,600.90

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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.