Finding the Fourth Proportional to 11,478,361.48, 15,839,815.31 and 6,251,251.66
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Solution
The fourth proportional to 11,478,361.48, 15,839,815.31 and 6,251,251.66 is: 8,626,551.09
Step by Step Solution
- Step 1: Write the proportion equation
11,478,361.48 : 15,839,815.31 = 6,251,251.66 : x - Step 2: Convert to fraction form
11,478,361.48/15,839,815.31 = 6,251,251.66/x - Step 3: Cross multiply
11,478,361.48x = 15,839,815.31 × 6,251,251.66 - Step 4: Simplify right side
11,478,361.48x = 99,018,671,679,875.11 - Step 5: Solve for x
x = 99,018,671,679,875.11/11,478,361.48 - Step 6: Final answer
x = 8,626,551.09
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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.