Finding the Fourth Proportional to 5,756,721.96, 7,944,400.14 and 3,178,565.66
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Solution
The fourth proportional to 5,756,721.96, 7,944,400.14 and 3,178,565.66 is: 4,386,488.99
Step by Step Solution
- Step 1: Write the proportion equation
5,756,721.96 : 7,944,400.14 = 3,178,565.66 : x - Step 2: Convert to fraction form
5,756,721.96/7,944,400.14 = 3,178,565.66/x - Step 3: Cross multiply
5,756,721.96x = 7,944,400.14 × 3,178,565.66 - Step 4: Simplify right side
5,756,721.96x = 25,251,797,474,303.19 - Step 5: Solve for x
x = 25,251,797,474,303.19/5,756,721.96 - Step 6: Final answer
x = 4,386,488.99
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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.