Finding the Fourth Proportional to 388,706,573.84, 533,559,757.31 and 343,666,949.09
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Solution
The fourth proportional to 388,706,573.84, 533,559,757.31 and 343,666,949.09 is: 471,735,921.88
Step by Step Solution
- Step 1: Write the proportion equation
388,706,573.84 : 533,559,757.31 = 343,666,949.09 : x - Step 2: Convert to fraction form
388,706,573.84/533,559,757.31 = 343,666,949.09/x - Step 3: Cross multiply
388,706,573.84x = 533,559,757.31 × 343,666,949.09 - Step 4: Simplify right side
388,706,573.84x = 183,366,853,952,323,072 - Step 5: Solve for x
x = 183,366,853,952,323,072/388,706,573.84 - Step 6: Final answer
x = 471,735,921.88
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These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.