Finding the Fourth Proportional to 6,318,885.44, 8,720,064.48 and 3,418,275.68
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Solution
The fourth proportional to 6,318,885.44, 8,720,064.48 and 3,418,275.68 is: 4,717,221.83
Step by Step Solution
- Step 1: Write the proportion equation
6,318,885.44 : 8,720,064.48 = 3,418,275.68 : x - Step 2: Convert to fraction form
6,318,885.44/8,720,064.48 = 3,418,275.68/x - Step 3: Cross multiply
6,318,885.44x = 8,720,064.48 × 3,418,275.68 - Step 4: Simplify right side
6,318,885.44x = 29,807,584,340,015.85 - Step 5: Solve for x
x = 29,807,584,340,015.85/6,318,885.44 - Step 6: Final answer
x = 4,717,221.83
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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.