Finding the Fourth Proportional to 522,174,956.10, 721,634,916.06 and 427,940,502.18
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Solution
The fourth proportional to 522,174,956.10, 721,634,916.06 and 427,940,502.18 is: 591,404,862.99
Step by Step Solution
- Step 1: Write the proportion equation
522,174,956.10 : 721,634,916.06 = 427,940,502.18 : x - Step 2: Convert to fraction form
522,174,956.10/721,634,916.06 = 427,940,502.18/x - Step 3: Cross multiply
522,174,956.10x = 721,634,916.06 × 427,940,502.18 - Step 4: Simplify right side
522,174,956.10x = 308,816,808,369,338,496 - Step 5: Solve for x
x = 308,816,808,369,338,496/522,174,956.10 - Step 6: Final answer
x = 591,404,862.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.