Home / 819,131,897.25-1,228,563,324.72-352,667,738.68

Finding the Fourth Proportional to 819,131,897.25, 1,228,563,324.72 and 352,667,738.68

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Solution

The fourth proportional to 819,131,897.25, 1,228,563,324.72 and 352,667,738.68 is: 528,943,691.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,131,897.25 : 1,228,563,324.72 = 352,667,738.68 : x
  2. Step 2: Convert to fraction form
    819,131,897.25/1,228,563,324.72 = 352,667,738.68/x
  3. Step 3: Cross multiply
    819,131,897.25x = 1,228,563,324.72 × 352,667,738.68
  4. Step 4: Simplify right side
    819,131,897.25x = 433,274,649,554,184,960
  5. Step 5: Solve for x
    x = 433,274,649,554,184,960/819,131,897.25
  6. Step 6: Final answer
    x = 528,943,691.50

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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.