Finding the Fourth Proportional to 8,013,412,272.21, 12,020,118,781.97 and 5,489,852,061.99
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Solution
The fourth proportional to 8,013,412,272.21, 12,020,118,781.97 and 5,489,852,061.99 is: 8,234,778,348.97
Step by Step Solution
- Step 1: Write the proportion equation
8,013,412,272.21 : 12,020,118,781.97 = 5,489,852,061.99 : x - Step 2: Convert to fraction form
8,013,412,272.21/12,020,118,781.97 = 5,489,852,061.99/x - Step 3: Cross multiply
8,013,412,272.21x = 12,020,118,781.97 × 5,489,852,061.99 - Step 4: Simplify right side
8,013,412,272.21x = 65,988,673,880,584,527,872 - Step 5: Solve for x
x = 65,988,673,880,584,527,872/8,013,412,272.21 - Step 6: Final answer
x = 8,234,778,348.97
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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.