Finding the Fourth Proportional to 10,586,765.80, 15,844,719.30 and 7,398,119.80
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Solution
The fourth proportional to 10,586,765.80, 15,844,719.30 and 7,398,119.80 is: 11,072,421.34
Step by Step Solution
- Step 1: Write the proportion equation
10,586,765.80 : 15,844,719.30 = 7,398,119.80 : x - Step 2: Convert to fraction form
10,586,765.80/15,844,719.30 = 7,398,119.80/x - Step 3: Cross multiply
10,586,765.80x = 15,844,719.30 × 7,398,119.80 - Step 4: Simplify right side
10,586,765.80x = 117,221,131,578,772.14 - Step 5: Solve for x
x = 117,221,131,578,772.14/10,586,765.80 - Step 6: Final answer
x = 11,072,421.34
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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.