Finding the Fourth Proportional to 5,418,606.36, 8,127,872.64 and 1,319,878.59
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Solution
The fourth proportional to 5,418,606.36, 8,127,872.64 and 1,319,878.59 is: 1,979,808.90
Step by Step Solution
- Step 1: Write the proportion equation
5,418,606.36 : 8,127,872.64 = 1,319,878.59 : x - Step 2: Convert to fraction form
5,418,606.36/8,127,872.64 = 1,319,878.59/x - Step 3: Cross multiply
5,418,606.36x = 8,127,872.64 × 1,319,878.59 - Step 4: Simplify right side
5,418,606.36x = 10,727,805,079,782.78 - Step 5: Solve for x
x = 10,727,805,079,782.78/5,418,606.36 - Step 6: Final answer
x = 1,979,808.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.