Home / 667,372,605.40-1,001,058,908.10-640,162,826.20

Finding the Fourth Proportional to 667,372,605.40, 1,001,058,908.10 and 640,162,826.20

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Solution

The fourth proportional to 667,372,605.40, 1,001,058,908.10 and 640,162,826.20 is: 960,244,239.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,372,605.40 : 1,001,058,908.10 = 640,162,826.20 : x
  2. Step 2: Convert to fraction form
    667,372,605.40/1,001,058,908.10 = 640,162,826.20/x
  3. Step 3: Cross multiply
    667,372,605.40x = 1,001,058,908.10 × 640,162,826.20
  4. Step 4: Simplify right side
    667,372,605.40x = 640,840,699,801,982,080
  5. Step 5: Solve for x
    x = 640,840,699,801,982,080/667,372,605.40
  6. Step 6: Final answer
    x = 960,244,239.30

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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.