Finding the Fourth Proportional to 658,922,022.18, 987,688,133.06 and 216,149,082.53
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Solution
The fourth proportional to 658,922,022.18, 987,688,133.06 and 216,149,082.53 is: 323,995,672.62
Step by Step Solution
- Step 1: Write the proportion equation
658,922,022.18 : 987,688,133.06 = 216,149,082.53 : x - Step 2: Convert to fraction form
658,922,022.18/987,688,133.06 = 216,149,082.53/x - Step 3: Cross multiply
658,922,022.18x = 987,688,133.06 × 216,149,082.53 - Step 4: Simplify right side
658,922,022.18x = 213,487,883,780,668,384 - Step 5: Solve for x
x = 213,487,883,780,668,384/658,922,022.18 - Step 6: Final answer
x = 323,995,672.62
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.