Home / 724,727,888.20-1,000,135,991.22-411,455,709.64

Finding the Fourth Proportional to 724,727,888.20, 1,000,135,991.22 and 411,455,709.64

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Solution

The fourth proportional to 724,727,888.20, 1,000,135,991.22 and 411,455,709.64 is: 567,815,411.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,727,888.20 : 1,000,135,991.22 = 411,455,709.64 : x
  2. Step 2: Convert to fraction form
    724,727,888.20/1,000,135,991.22 = 411,455,709.64/x
  3. Step 3: Cross multiply
    724,727,888.20x = 1,000,135,991.22 × 411,455,709.64
  4. Step 4: Simplify right side
    724,727,888.20x = 411,511,664,003,929,920
  5. Step 5: Solve for x
    x = 411,511,664,003,929,920/724,727,888.20
  6. Step 6: Final answer
    x = 567,815,411.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.