Finding the Fourth Proportional to 1,181,900,862.84, 1,631,057,877.18 and 646,082,136.84
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Solution
The fourth proportional to 1,181,900,862.84, 1,631,057,877.18 and 646,082,136.84 is: 891,612,310.08
Step by Step Solution
- Step 1: Write the proportion equation
1,181,900,862.84 : 1,631,057,877.18 = 646,082,136.84 : x - Step 2: Convert to fraction form
1,181,900,862.84/1,631,057,877.18 = 646,082,136.84/x - Step 3: Cross multiply
1,181,900,862.84x = 1,631,057,877.18 × 646,082,136.84 - Step 4: Simplify right side
1,181,900,862.84x = 1,053,797,358,598,168,832 - Step 5: Solve for x
x = 1,053,797,358,598,168,832/1,181,900,862.84 - Step 6: Final answer
x = 891,612,310.08
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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.