Home / 679,301,507.36-937,141,022.96-431,650,000.80

Finding the Fourth Proportional to 679,301,507.36, 937,141,022.96 and 431,650,000.80

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Solution

The fourth proportional to 679,301,507.36, 937,141,022.96 and 431,650,000.80 is: 595,489,512.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,301,507.36 : 937,141,022.96 = 431,650,000.80 : x
  2. Step 2: Convert to fraction form
    679,301,507.36/937,141,022.96 = 431,650,000.80/x
  3. Step 3: Cross multiply
    679,301,507.36x = 937,141,022.96 × 431,650,000.80
  4. Step 4: Simplify right side
    679,301,507.36x = 404,516,923,310,396,864
  5. Step 5: Solve for x
    x = 404,516,923,310,396,864/679,301,507.36
  6. Step 6: Final answer
    x = 595,489,512.28

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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.