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Finding the Fourth Proportional to 303,807,728.80, 455,724,034.80 and 88,396,976.80

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Solution

The fourth proportional to 303,807,728.80, 455,724,034.80 and 88,396,976.80 is: 132,599,085.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,807,728.80 : 455,724,034.80 = 88,396,976.80 : x
  2. Step 2: Convert to fraction form
    303,807,728.80/455,724,034.80 = 88,396,976.80/x
  3. Step 3: Cross multiply
    303,807,728.80x = 455,724,034.80 × 88,396,976.80
  4. Step 4: Simplify right side
    303,807,728.80x = 40,284,626,931,417,992
  5. Step 5: Solve for x
    x = 40,284,626,931,417,992/303,807,728.80
  6. Step 6: Final answer
    x = 132,599,085.25

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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.