Finding the Fourth Proportional to 10,363,879.68, 15,545,819.51 and 5,325,031.68
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Solution
The fourth proportional to 10,363,879.68, 15,545,819.51 and 5,325,031.68 is: 7,987,547.51
Step by Step Solution
- Step 1: Write the proportion equation
10,363,879.68 : 15,545,819.51 = 5,325,031.68 : x - Step 2: Convert to fraction form
10,363,879.68/15,545,819.51 = 5,325,031.68/x - Step 3: Cross multiply
10,363,879.68x = 15,545,819.51 × 5,325,031.68 - Step 4: Simplify right side
10,363,879.68x = 82,781,981,382,312.08 - Step 5: Solve for x
x = 82,781,981,382,312.08/10,363,879.68 - Step 6: Final answer
x = 7,987,547.51
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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.