Finding the Fourth Proportional to 738,257,923.20, 1,107,812,037.60 and 278,526,028.80
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Solution
The fourth proportional to 738,257,923.20, 1,107,812,037.60 and 278,526,028.80 is: 417,949,442.59
Step by Step Solution
- Step 1: Write the proportion equation
738,257,923.20 : 1,107,812,037.60 = 278,526,028.80 : x - Step 2: Convert to fraction form
738,257,923.20/1,107,812,037.60 = 278,526,028.80/x - Step 3: Cross multiply
738,257,923.20x = 1,107,812,037.60 × 278,526,028.80 - Step 4: Simplify right side
738,257,923.20x = 308,554,487,489,564,288 - Step 5: Solve for x
x = 308,554,487,489,564,288/738,257,923.20 - Step 6: Final answer
x = 417,949,442.59
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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.