Finding the Fourth Proportional to 5,252,621.40, 7,248,407.56 and 2,961,258.12
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Solution
The fourth proportional to 5,252,621.40, 7,248,407.56 and 2,961,258.12 is: 4,086,417.83
Step by Step Solution
- Step 1: Write the proportion equation
5,252,621.40 : 7,248,407.56 = 2,961,258.12 : x - Step 2: Convert to fraction form
5,252,621.40/7,248,407.56 = 2,961,258.12/x - Step 3: Cross multiply
5,252,621.40x = 7,248,407.56 × 2,961,258.12 - Step 4: Simplify right side
5,252,621.40x = 21,464,405,744,119.39 - Step 5: Solve for x
x = 21,464,405,744,119.39/5,252,621.40 - Step 6: Final answer
x = 4,086,417.83
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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.