Home / 543,019,915.98-749,306,435.13-319,987,119.06

Finding the Fourth Proportional to 543,019,915.98, 749,306,435.13 and 319,987,119.06

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Solution

The fourth proportional to 543,019,915.98, 749,306,435.13 and 319,987,119.06 is: 441,546,249.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,019,915.98 : 749,306,435.13 = 319,987,119.06 : x
  2. Step 2: Convert to fraction form
    543,019,915.98/749,306,435.13 = 319,987,119.06/x
  3. Step 3: Cross multiply
    543,019,915.98x = 749,306,435.13 × 319,987,119.06
  4. Step 4: Simplify right side
    543,019,915.98x = 239,768,407,470,367,488
  5. Step 5: Solve for x
    x = 239,768,407,470,367,488/543,019,915.98
  6. Step 6: Final answer
    x = 441,546,249.80

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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.