Finding the Fourth Proportional to 2,914,720,995.85, 4,372,081,353.61 and 816,508,070.17
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Solution
The fourth proportional to 2,914,720,995.85, 4,372,081,353.61 and 816,508,070.17 is: 1,224,762,065.99
Step by Step Solution
- Step 1: Write the proportion equation
2,914,720,995.85 : 4,372,081,353.61 = 816,508,070.17 : x - Step 2: Convert to fraction form
2,914,720,995.85/4,372,081,353.61 = 816,508,070.17/x - Step 3: Cross multiply
2,914,720,995.85x = 4,372,081,353.61 × 816,508,070.17 - Step 4: Simplify right side
2,914,720,995.85x = 3,569,839,708,649,371,136 - Step 5: Solve for x
x = 3,569,839,708,649,371,136/2,914,720,995.85 - Step 6: Final answer
x = 1,224,762,065.99
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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.