Finding the Fourth Proportional to 212,329,712.97, 318,542,818.41 and 64,790,470.67
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Solution
The fourth proportional to 212,329,712.97, 318,542,818.41 and 64,790,470.67 is: 97,200,428.72
Step by Step Solution
- Step 1: Write the proportion equation
212,329,712.97 : 318,542,818.41 = 64,790,470.67 : x - Step 2: Convert to fraction form
212,329,712.97/318,542,818.41 = 64,790,470.67/x - Step 3: Cross multiply
212,329,712.97x = 318,542,818.41 × 64,790,470.67 - Step 4: Simplify right side
212,329,712.97x = 20,638,539,131,739,528 - Step 5: Solve for x
x = 20,638,539,131,739,528/212,329,712.97 - Step 6: Final answer
x = 97,200,428.72
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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.