Home / 425,459,020.05-638,003,181.76-225,994,654.62

Finding the Fourth Proportional to 425,459,020.05, 638,003,181.76 and 225,994,654.62

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Solution

The fourth proportional to 425,459,020.05, 638,003,181.76 and 225,994,654.62 is: 338,893,528.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,459,020.05 : 638,003,181.76 = 225,994,654.62 : x
  2. Step 2: Convert to fraction form
    425,459,020.05/638,003,181.76 = 225,994,654.62/x
  3. Step 3: Cross multiply
    425,459,020.05x = 638,003,181.76 × 225,994,654.62
  4. Step 4: Simplify right side
    425,459,020.05x = 144,185,308,707,747,296
  5. Step 5: Solve for x
    x = 144,185,308,707,747,296/425,459,020.05
  6. Step 6: Final answer
    x = 338,893,528.90

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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.