Finding the Fourth Proportional to 4,367,338,721.20, 6,551,008,081.80 and 1,419,612,641.20
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Solution
The fourth proportional to 4,367,338,721.20, 6,551,008,081.80 and 1,419,612,641.20 is: 2,129,418,961.80
Step by Step Solution
- Step 1: Write the proportion equation
4,367,338,721.20 : 6,551,008,081.80 = 1,419,612,641.20 : x - Step 2: Convert to fraction form
4,367,338,721.20/6,551,008,081.80 = 1,419,612,641.20/x - Step 3: Cross multiply
4,367,338,721.20x = 6,551,008,081.80 × 1,419,612,641.20 - Step 4: Simplify right side
4,367,338,721.20x = 9,299,893,885,526,644,736 - Step 5: Solve for x
x = 9,299,893,885,526,644,736/4,367,338,721.20 - Step 6: Final answer
x = 2,129,418,961.80
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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.