Finding the Fourth Proportional to 808,202,228.20, 1,212,303,342.30 and 614,491,983.70
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Solution
The fourth proportional to 808,202,228.20, 1,212,303,342.30 and 614,491,983.70 is: 921,737,975.55
Step by Step Solution
- Step 1: Write the proportion equation
808,202,228.20 : 1,212,303,342.30 = 614,491,983.70 : x - Step 2: Convert to fraction form
808,202,228.20/1,212,303,342.30 = 614,491,983.70/x - Step 3: Cross multiply
808,202,228.20x = 1,212,303,342.30 × 614,491,983.70 - Step 4: Simplify right side
808,202,228.20x = 744,950,685,656,067,200 - Step 5: Solve for x
x = 744,950,685,656,067,200/808,202,228.20 - Step 6: Final answer
x = 921,737,975.55
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Double scale
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1.5x scale
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.