Finding the Fourth Proportional to 10,206,821.70, 15,310,232.55 and 6,805,599.30
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Solution
The fourth proportional to 10,206,821.70, 15,310,232.55 and 6,805,599.30 is: 10,208,398.95
Step by Step Solution
- Step 1: Write the proportion equation
10,206,821.70 : 15,310,232.55 = 6,805,599.30 : x - Step 2: Convert to fraction form
10,206,821.70/15,310,232.55 = 6,805,599.30/x - Step 3: Cross multiply
10,206,821.70x = 15,310,232.55 × 6,805,599.30 - Step 4: Simplify right side
10,206,821.70x = 104,195,307,925,117.22 - Step 5: Solve for x
x = 104,195,307,925,117.22/10,206,821.70 - Step 6: Final answer
x = 10,208,398.95
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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.