Finding the Fourth Proportional to 5,371,248.80, 8,040,284.40 and 3,120,701.60
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Solution
The fourth proportional to 5,371,248.80, 8,040,284.40 and 3,120,701.60 is: 4,671,414.29
Step by Step Solution
- Step 1: Write the proportion equation
5,371,248.80 : 8,040,284.40 = 3,120,701.60 : x - Step 2: Convert to fraction form
5,371,248.80/8,040,284.40 = 3,120,701.60/x - Step 3: Cross multiply
5,371,248.80x = 8,040,284.40 × 3,120,701.60 - Step 4: Simplify right side
5,371,248.80x = 25,091,328,391,535.04 - Step 5: Solve for x
x = 25,091,328,391,535.04/5,371,248.80 - Step 6: Final answer
x = 4,671,414.29
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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.