Finding the Fourth Proportional to 1,141,473,542.70, 1,711,790,337.12 and 394,299,168.18
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Solution
The fourth proportional to 1,141,473,542.70, 1,711,790,337.12 and 394,299,168.18 is: 591,303,679.65
Step by Step Solution
- Step 1: Write the proportion equation
1,141,473,542.70 : 1,711,790,337.12 = 394,299,168.18 : x - Step 2: Convert to fraction form
1,141,473,542.70/1,711,790,337.12 = 394,299,168.18/x - Step 3: Cross multiply
1,141,473,542.70x = 1,711,790,337.12 × 394,299,168.18 - Step 4: Simplify right side
1,141,473,542.70x = 674,957,506,024,977,792 - Step 5: Solve for x
x = 674,957,506,024,977,792/1,141,473,542.70 - Step 6: Final answer
x = 591,303,679.65
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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.