Home / 209,984,910.30-314,977,365.45-137,425,499.10

Finding the Fourth Proportional to 209,984,910.30, 314,977,365.45 and 137,425,499.10

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Solution

The fourth proportional to 209,984,910.30, 314,977,365.45 and 137,425,499.10 is: 206,138,248.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,984,910.30 : 314,977,365.45 = 137,425,499.10 : x
  2. Step 2: Convert to fraction form
    209,984,910.30/314,977,365.45 = 137,425,499.10/x
  3. Step 3: Cross multiply
    209,984,910.30x = 314,977,365.45 × 137,425,499.10
  4. Step 4: Simplify right side
    209,984,910.30x = 43,285,921,652,169,344
  5. Step 5: Solve for x
    x = 43,285,921,652,169,344/209,984,910.30
  6. Step 6: Final answer
    x = 206,138,248.65

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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.