Finding the Fourth Proportional to 10,257,531.80, 15,386,297.70 and 9,785,139.80
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Solution
The fourth proportional to 10,257,531.80, 15,386,297.70 and 9,785,139.80 is: 14,677,709.70
Step by Step Solution
- Step 1: Write the proportion equation
10,257,531.80 : 15,386,297.70 = 9,785,139.80 : x - Step 2: Convert to fraction form
10,257,531.80/15,386,297.70 = 9,785,139.80/x - Step 3: Cross multiply
10,257,531.80x = 15,386,297.70 × 9,785,139.80 - Step 4: Simplify right side
10,257,531.80x = 150,557,073,998,918.47 - Step 5: Solve for x
x = 150,557,073,998,918.47/10,257,531.80 - Step 6: Final answer
x = 14,677,709.70
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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.