Finding the Fourth Proportional to 5,418,607.36, 8,127,874.14 and 1,319,879.58
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Solution
The fourth proportional to 5,418,607.36, 8,127,874.14 and 1,319,879.58 is: 1,979,810.38
Step by Step Solution
- Step 1: Write the proportion equation
5,418,607.36 : 8,127,874.14 = 1,319,879.58 : x - Step 2: Convert to fraction form
5,418,607.36/8,127,874.14 = 1,319,879.58/x - Step 3: Cross multiply
5,418,607.36x = 8,127,874.14 × 1,319,879.58 - Step 4: Simplify right side
5,418,607.36x = 10,727,815,106,196.06 - Step 5: Solve for x
x = 10,727,815,106,196.06/5,418,607.36 - Step 6: Final answer
x = 1,979,810.38
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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.