Finding the Fourth Proportional to 5,418,605.36, 8,127,871.14 and 1,319,877.59
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Solution
The fourth proportional to 5,418,605.36, 8,127,871.14 and 1,319,877.59 is: 1,979,807.39
Step by Step Solution
- Step 1: Write the proportion equation
5,418,605.36 : 8,127,871.14 = 1,319,877.59 : x - Step 2: Convert to fraction form
5,418,605.36/8,127,871.14 = 1,319,877.59/x - Step 3: Cross multiply
5,418,605.36x = 8,127,871.14 × 1,319,877.59 - Step 4: Simplify right side
5,418,605.36x = 10,727,794,928,979.62 - Step 5: Solve for x
x = 10,727,794,928,979.62/5,418,605.36 - Step 6: Final answer
x = 1,979,807.39
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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.