Finding the Fourth Proportional to 328,537,744.80, 492,806,617.20 and 199,291,293.60
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Solution
The fourth proportional to 328,537,744.80, 492,806,617.20 and 199,291,293.60 is: 298,936,940.40
Step by Step Solution
- Step 1: Write the proportion equation
328,537,744.80 : 492,806,617.20 = 199,291,293.60 : x - Step 2: Convert to fraction form
328,537,744.80/492,806,617.20 = 199,291,293.60/x - Step 3: Cross multiply
328,537,744.80x = 492,806,617.20 × 199,291,293.60 - Step 4: Simplify right side
328,537,744.80x = 98,212,068,236,428,000 - Step 5: Solve for x
x = 98,212,068,236,428,000/328,537,744.80 - Step 6: Final answer
x = 298,936,940.40
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.