Home / 354,288,067.40-531,432,101.10-217,530,000.20

Finding the Fourth Proportional to 354,288,067.40, 531,432,101.10 and 217,530,000.20

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Solution

The fourth proportional to 354,288,067.40, 531,432,101.10 and 217,530,000.20 is: 326,295,000.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,288,067.40 : 531,432,101.10 = 217,530,000.20 : x
  2. Step 2: Convert to fraction form
    354,288,067.40/531,432,101.10 = 217,530,000.20/x
  3. Step 3: Cross multiply
    354,288,067.40x = 531,432,101.10 × 217,530,000.20
  4. Step 4: Simplify right side
    354,288,067.40x = 115,602,425,058,569,424
  5. Step 5: Solve for x
    x = 115,602,425,058,569,424/354,288,067.40
  6. Step 6: Final answer
    x = 326,295,000.30

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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.