Finding the Fourth Proportional to 4,839,248.40, 7,258,872.60 and 3,138,637.20
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Solution
The fourth proportional to 4,839,248.40, 7,258,872.60 and 3,138,637.20 is: 4,707,955.80
Step by Step Solution
- Step 1: Write the proportion equation
4,839,248.40 : 7,258,872.60 = 3,138,637.20 : x - Step 2: Convert to fraction form
4,839,248.40/7,258,872.60 = 3,138,637.20/x - Step 3: Cross multiply
4,839,248.40x = 7,258,872.60 × 3,138,637.20 - Step 4: Simplify right side
4,839,248.40x = 22,782,967,572,420.72 - Step 5: Solve for x
x = 22,782,967,572,420.72/4,839,248.40 - Step 6: Final answer
x = 4,707,955.80
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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.