Finding the Fourth Proportional to 7,069,022.62, 9,755,380.19 and 3,929,581.08
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Solution
The fourth proportional to 7,069,022.62, 9,755,380.19 and 3,929,581.08 is: 5,422,893.59
Step by Step Solution
- Step 1: Write the proportion equation
7,069,022.62 : 9,755,380.19 = 3,929,581.08 : x - Step 2: Convert to fraction form
7,069,022.62/9,755,380.19 = 3,929,581.08/x - Step 3: Cross multiply
7,069,022.62x = 9,755,380.19 × 3,929,581.08 - Step 4: Simplify right side
7,069,022.62x = 38,334,557,432,654.77 - Step 5: Solve for x
x = 38,334,557,432,654.77/7,069,022.62 - Step 6: Final answer
x = 5,422,893.59
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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.