Finding the Fourth Proportional to 378,273,257.44, 521,818,600.50 and 307,787,572.96
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Solution
The fourth proportional to 378,273,257.44, 521,818,600.50 and 307,787,572.96 is: 424,585,342.51
Step by Step Solution
- Step 1: Write the proportion equation
378,273,257.44 : 521,818,600.50 = 307,787,572.96 : x - Step 2: Convert to fraction form
378,273,257.44/521,818,600.50 = 307,787,572.96/x - Step 3: Cross multiply
378,273,257.44x = 521,818,600.50 × 307,787,572.96 - Step 4: Simplify right side
378,273,257.44x = 160,609,280,573,278,816 - Step 5: Solve for x
x = 160,609,280,573,278,816/378,273,257.44 - Step 6: Final answer
x = 424,585,342.51
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.