Home / 819,343,652.33-1,228,487,061.37-321,404,479.74

Finding the Fourth Proportional to 819,343,652.33, 1,228,487,061.37 and 321,404,479.74

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Solution

The fourth proportional to 819,343,652.33, 1,228,487,061.37 and 321,404,479.74 is: 481,899,437.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,343,652.33 : 1,228,487,061.37 = 321,404,479.74 : x
  2. Step 2: Convert to fraction form
    819,343,652.33/1,228,487,061.37 = 321,404,479.74/x
  3. Step 3: Cross multiply
    819,343,652.33x = 1,228,487,061.37 × 321,404,479.74
  4. Step 4: Simplify right side
    819,343,652.33x = 394,841,244,829,285,696
  5. Step 5: Solve for x
    x = 394,841,244,829,285,696/819,343,652.33
  6. Step 6: Final answer
    x = 481,899,437.08

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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.