Home / 815,755,614.28-1,223,872,196.67-263,046,926.86

Finding the Fourth Proportional to 815,755,614.28, 1,223,872,196.67 and 263,046,926.86

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Solution

The fourth proportional to 815,755,614.28, 1,223,872,196.67 and 263,046,926.86 is: 394,647,385.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,755,614.28 : 1,223,872,196.67 = 263,046,926.86 : x
  2. Step 2: Convert to fraction form
    815,755,614.28/1,223,872,196.67 = 263,046,926.86/x
  3. Step 3: Cross multiply
    815,755,614.28x = 1,223,872,196.67 × 263,046,926.86
  4. Step 4: Simplify right side
    815,755,614.28x = 321,935,820,203,441,088
  5. Step 5: Solve for x
    x = 321,935,820,203,441,088/815,755,614.28
  6. Step 6: Final answer
    x = 394,647,385.28

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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.