Home / 756,635,286.72-1,044,157,143.48-422,107,810.30

Finding the Fourth Proportional to 756,635,286.72, 1,044,157,143.48 and 422,107,810.30

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Solution

The fourth proportional to 756,635,286.72, 1,044,157,143.48 and 422,107,810.30 is: 582,509,028.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,635,286.72 : 1,044,157,143.48 = 422,107,810.30 : x
  2. Step 2: Convert to fraction form
    756,635,286.72/1,044,157,143.48 = 422,107,810.30/x
  3. Step 3: Cross multiply
    756,635,286.72x = 1,044,157,143.48 × 422,107,810.30
  4. Step 4: Simplify right side
    756,635,286.72x = 440,746,885,443,445,760
  5. Step 5: Solve for x
    x = 440,746,885,443,445,760/756,635,286.72
  6. Step 6: Final answer
    x = 582,509,028.03

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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.