Finding the Fourth Proportional to 328,720,639.08, 453,641,825.05 and 187,589,049.66
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Solution
The fourth proportional to 328,720,639.08, 453,641,825.05 and 187,589,049.66 is: 258,877,078.99
Step by Step Solution
- Step 1: Write the proportion equation
328,720,639.08 : 453,641,825.05 = 187,589,049.66 : x - Step 2: Convert to fraction form
328,720,639.08/453,641,825.05 = 187,589,049.66/x - Step 3: Cross multiply
328,720,639.08x = 453,641,825.05 × 187,589,049.66 - Step 4: Simplify right side
328,720,639.08x = 85,098,238,847,157,488 - Step 5: Solve for x
x = 85,098,238,847,157,488/328,720,639.08 - Step 6: Final answer
x = 258,877,078.99
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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.