Home / 326,591,999.80-489,887,999.70-319,033,727.80

Finding the Fourth Proportional to 326,591,999.80, 489,887,999.70 and 319,033,727.80

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Solution

The fourth proportional to 326,591,999.80, 489,887,999.70 and 319,033,727.80 is: 478,550,591.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,591,999.80 : 489,887,999.70 = 319,033,727.80 : x
  2. Step 2: Convert to fraction form
    326,591,999.80/489,887,999.70 = 319,033,727.80/x
  3. Step 3: Cross multiply
    326,591,999.80x = 489,887,999.70 × 319,033,727.80
  4. Step 4: Simplify right side
    326,591,999.80x = 156,290,794,748,776,288
  5. Step 5: Solve for x
    x = 156,290,794,748,776,288/326,591,999.80
  6. Step 6: Final answer
    x = 478,550,591.70

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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.