Home / 319,296,100.20-478,944,150.30-103,885,348.20

Finding the Fourth Proportional to 319,296,100.20, 478,944,150.30 and 103,885,348.20

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Solution

The fourth proportional to 319,296,100.20, 478,944,150.30 and 103,885,348.20 is: 155,828,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,296,100.20 : 478,944,150.30 = 103,885,348.20 : x
  2. Step 2: Convert to fraction form
    319,296,100.20/478,944,150.30 = 103,885,348.20/x
  3. Step 3: Cross multiply
    319,296,100.20x = 478,944,150.30 × 103,885,348.20
  4. Step 4: Simplify right side
    319,296,100.20x = 49,755,279,822,268,640
  5. Step 5: Solve for x
    x = 49,755,279,822,268,640/319,296,100.20
  6. Step 6: Final answer
    x = 155,828,022.30

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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.