Finding the Fourth Proportional to 1,549,592,191.28, 2,138,419,551.80 and 844,728,623.12
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Solution
The fourth proportional to 1,549,592,191.28, 2,138,419,551.80 and 844,728,623.12 is: 1,165,715,866.28
Step by Step Solution
- Step 1: Write the proportion equation
1,549,592,191.28 : 2,138,419,551.80 = 844,728,623.12 : x - Step 2: Convert to fraction form
1,549,592,191.28/2,138,419,551.80 = 844,728,623.12/x - Step 3: Cross multiply
1,549,592,191.28x = 2,138,419,551.80 × 844,728,623.12 - Step 4: Simplify right side
1,549,592,191.28x = 1,806,384,203,644,901,376 - Step 5: Solve for x
x = 1,806,384,203,644,901,376/1,549,592,191.28 - Step 6: Final answer
x = 1,165,715,866.28
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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.