Home / 398,587,774.80-597,403,365.30-204,399,233.40

Finding the Fourth Proportional to 398,587,774.80, 597,403,365.30 and 204,399,233.40

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Solution

The fourth proportional to 398,587,774.80, 597,403,365.30 and 204,399,233.40 is: 306,353,575.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,587,774.80 : 597,403,365.30 = 204,399,233.40 : x
  2. Step 2: Convert to fraction form
    398,587,774.80/597,403,365.30 = 204,399,233.40/x
  3. Step 3: Cross multiply
    398,587,774.80x = 597,403,365.30 × 204,399,233.40
  4. Step 4: Simplify right side
    398,587,774.80x = 122,108,789,897,900,160
  5. Step 5: Solve for x
    x = 122,108,789,897,900,160/398,587,774.80
  6. Step 6: Final answer
    x = 306,353,575.34

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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.