Finding the Fourth Proportional to 8,431,987.35, 12,646,088.04 and 3,878,663.07
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Solution
The fourth proportional to 8,431,987.35, 12,646,088.04 and 3,878,663.07 is: 5,817,123.84
Step by Step Solution
- Step 1: Write the proportion equation
8,431,987.35 : 12,646,088.04 = 3,878,663.07 : x - Step 2: Convert to fraction form
8,431,987.35/12,646,088.04 = 3,878,663.07/x - Step 3: Cross multiply
8,431,987.35x = 12,646,088.04 × 3,878,663.07 - Step 4: Simplify right side
8,431,987.35x = 49,049,914,660,716.68 - Step 5: Solve for x
x = 49,049,914,660,716.68/8,431,987.35 - Step 6: Final answer
x = 5,817,123.84
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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.