Finding the Fourth Proportional to 10,434,638.16, 14,387,508.36 and 9,660,770.64
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Solution
The fourth proportional to 10,434,638.16, 14,387,508.36 and 9,660,770.64 is: 13,320,482.82
Step by Step Solution
- Step 1: Write the proportion equation
10,434,638.16 : 14,387,508.36 = 9,660,770.64 : x - Step 2: Convert to fraction form
10,434,638.16/14,387,508.36 = 9,660,770.64/x - Step 3: Cross multiply
10,434,638.16x = 14,387,508.36 × 9,660,770.64 - Step 4: Simplify right side
10,434,638.16x = 138,994,418,347,042.55 - Step 5: Solve for x
x = 138,994,418,347,042.55/10,434,638.16 - Step 6: Final answer
x = 13,320,482.82
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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.