Home / 319,296,099.20-478,944,148.80-103,885,347.20

Finding the Fourth Proportional to 319,296,099.20, 478,944,148.80 and 103,885,347.20

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Solution

The fourth proportional to 319,296,099.20, 478,944,148.80 and 103,885,347.20 is: 155,828,020.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,296,099.20 : 478,944,148.80 = 103,885,347.20 : x
  2. Step 2: Convert to fraction form
    319,296,099.20/478,944,148.80 = 103,885,347.20/x
  3. Step 3: Cross multiply
    319,296,099.20x = 478,944,148.80 × 103,885,347.20
  4. Step 4: Simplify right side
    319,296,099.20x = 49,755,279,187,496,464
  5. Step 5: Solve for x
    x = 49,755,279,187,496,464/319,296,099.20
  6. Step 6: Final answer
    x = 155,828,020.80

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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.