Finding the Fourth Proportional to 2,227,149,750.20, 3,342,637,812.90 and 985,490,997.80
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Solution
The fourth proportional to 2,227,149,750.20, 3,342,637,812.90 and 985,490,997.80 is: 1,479,083,062.66
Step by Step Solution
- Step 1: Write the proportion equation
2,227,149,750.20 : 3,342,637,812.90 = 985,490,997.80 : x - Step 2: Convert to fraction form
2,227,149,750.20/3,342,637,812.90 = 985,490,997.80/x - Step 3: Cross multiply
2,227,149,750.20x = 3,342,637,812.90 × 985,490,997.80 - Step 4: Simplify right side
2,227,149,750.20x = 3,294,139,473,518,830,592 - Step 5: Solve for x
x = 3,294,139,473,518,830,592/2,227,149,750.20 - Step 6: Final answer
x = 1,479,083,062.66
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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.