Finding the Fourth Proportional to 7,159,031.44, 9,879,465.00 and 3,939,767.44
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Solution
The fourth proportional to 7,159,031.44, 9,879,465.00 and 3,939,767.44 is: 5,436,879.96
Step by Step Solution
- Step 1: Write the proportion equation
7,159,031.44 : 9,879,465.00 = 3,939,767.44 : x - Step 2: Convert to fraction form
7,159,031.44/9,879,465.00 = 3,939,767.44/x - Step 3: Cross multiply
7,159,031.44x = 9,879,465.00 × 3,939,767.44 - Step 4: Simplify right side
7,159,031.44x = 38,922,794,521,695.06 - Step 5: Solve for x
x = 38,922,794,521,695.06/7,159,031.44 - Step 6: Final answer
x = 5,436,879.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.