Home / 380,928,001.20-571,392,001.80-199,230,874.80

Finding the Fourth Proportional to 380,928,001.20, 571,392,001.80 and 199,230,874.80

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Solution

The fourth proportional to 380,928,001.20, 571,392,001.80 and 199,230,874.80 is: 298,846,312.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,928,001.20 : 571,392,001.80 = 199,230,874.80 : x
  2. Step 2: Convert to fraction form
    380,928,001.20/571,392,001.80 = 199,230,874.80/x
  3. Step 3: Cross multiply
    380,928,001.20x = 571,392,001.80 × 199,230,874.80
  4. Step 4: Simplify right side
    380,928,001.20x = 113,838,928,372,337,168
  5. Step 5: Solve for x
    x = 113,838,928,372,337,168/380,928,001.20
  6. Step 6: Final answer
    x = 298,846,312.20

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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.