Finding the Fourth Proportional to 289,849,273.68, 399,993,737.16 and 157,691,218.24
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Solution
The fourth proportional to 289,849,273.68, 399,993,737.16 and 157,691,218.24 is: 217,614,827.53
Step by Step Solution
- Step 1: Write the proportion equation
289,849,273.68 : 399,993,737.16 = 157,691,218.24 : x - Step 2: Convert to fraction form
289,849,273.68/399,993,737.16 = 157,691,218.24/x - Step 3: Cross multiply
289,849,273.68x = 399,993,737.16 × 157,691,218.24 - Step 4: Simplify right side
289,849,273.68x = 63,075,499,701,130,768 - Step 5: Solve for x
x = 63,075,499,701,130,768/289,849,273.68 - Step 6: Final answer
x = 217,614,827.53
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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.