Finding the Fourth Proportional to 5,421,973.71, 8,132,979.57 and 1,378,461.96
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Solution
The fourth proportional to 5,421,973.71, 8,132,979.57 and 1,378,461.96 is: 2,067,697.77
Step by Step Solution
- Step 1: Write the proportion equation
5,421,973.71 : 8,132,979.57 = 1,378,461.96 : x - Step 2: Convert to fraction form
5,421,973.71/8,132,979.57 = 1,378,461.96/x - Step 3: Cross multiply
5,421,973.71x = 8,132,979.57 × 1,378,461.96 - Step 4: Simplify right side
5,421,973.71x = 11,211,002,958,702.16 - Step 5: Solve for x
x = 11,211,002,958,702.16/5,421,973.71 - Step 6: Final answer
x = 2,067,697.77
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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.