Finding the Fourth Proportional to 39,378,358.68, 59,067,290.16 and 21,191,120.88
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Solution
The fourth proportional to 39,378,358.68, 59,067,290.16 and 21,191,120.88 is: 31,786,547.94
Step by Step Solution
- Step 1: Write the proportion equation
39,378,358.68 : 59,067,290.16 = 21,191,120.88 : x - Step 2: Convert to fraction form
39,378,358.68/59,067,290.16 = 21,191,120.88/x - Step 3: Cross multiply
39,378,358.68x = 59,067,290.16 × 21,191,120.88 - Step 4: Simplify right side
39,378,358.68x = 1,251,702,085,834,594.50 - Step 5: Solve for x
x = 1,251,702,085,834,594.50/39,378,358.68 - Step 6: Final answer
x = 31,786,547.94
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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.