Finding the Fourth Proportional to 31,053,211.36, 42,853,607.36 and 18,008,215.63
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Solution
The fourth proportional to 31,053,211.36, 42,853,607.36 and 18,008,215.63 is: 24,851,439.45
Step by Step Solution
- Step 1: Write the proportion equation
31,053,211.36 : 42,853,607.36 = 18,008,215.63 : x - Step 2: Convert to fraction form
31,053,211.36/42,853,607.36 = 18,008,215.63/x - Step 3: Cross multiply
31,053,211.36x = 42,853,607.36 × 18,008,215.63 - Step 4: Simplify right side
31,053,211.36x = 771,717,001,862,235 - Step 5: Solve for x
x = 771,717,001,862,235/31,053,211.36 - Step 6: Final answer
x = 24,851,439.45
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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.