Finding the Fourth Proportional to 9,215,641.74, 12,717,890.70 and 5,029,555.62
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Solution
The fourth proportional to 9,215,641.74, 12,717,890.70 and 5,029,555.62 is: 6,940,953.27
Step by Step Solution
- Step 1: Write the proportion equation
9,215,641.74 : 12,717,890.70 = 5,029,555.62 : x - Step 2: Convert to fraction form
9,215,641.74/12,717,890.70 = 5,029,555.62/x - Step 3: Cross multiply
9,215,641.74x = 12,717,890.70 × 5,029,555.62 - Step 4: Simplify right side
9,215,641.74x = 63,965,338,644,730.73 - Step 5: Solve for x
x = 63,965,338,644,730.73/9,215,641.74 - Step 6: Final answer
x = 6,940,953.27
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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.