Finding the Fourth Proportional to 412,421,887.21, 618,574,585.18 and 132,266,397.38
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Solution
The fourth proportional to 412,421,887.21, 618,574,585.18 and 132,266,397.38 is: 198,380,916.31
Step by Step Solution
- Step 1: Write the proportion equation
412,421,887.21 : 618,574,585.18 = 132,266,397.38 : x - Step 2: Convert to fraction form
412,421,887.21/618,574,585.18 = 132,266,397.38/x - Step 3: Cross multiply
412,421,887.21x = 618,574,585.18 × 132,266,397.38 - Step 4: Simplify right side
412,421,887.21x = 81,816,631,892,586,528 - Step 5: Solve for x
x = 81,816,631,892,586,528/412,421,887.21 - Step 6: Final answer
x = 198,380,916.31
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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.