Finding the Fourth Proportional to 8,121,243,402.12, 11,210,988,136.50 and 5,114,914,338.90
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Solution
The fourth proportional to 8,121,243,402.12, 11,210,988,136.50 and 5,114,914,338.90 is: 7,060,894,635.62
Step by Step Solution
- Step 1: Write the proportion equation
8,121,243,402.12 : 11,210,988,136.50 = 5,114,914,338.90 : x - Step 2: Convert to fraction form
8,121,243,402.12/11,210,988,136.50 = 5,114,914,338.90/x - Step 3: Cross multiply
8,121,243,402.12x = 11,210,988,136.50 × 5,114,914,338.90 - Step 4: Simplify right side
8,121,243,402.12x = 57,343,243,972,637,548,544 - Step 5: Solve for x
x = 57,343,243,972,637,548,544/8,121,243,402.12 - Step 6: Final answer
x = 7,060,894,635.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.