Finding the Fourth Proportional to 9,874,387.18, 13,620,695.82 and 6,521,574.03
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Solution
The fourth proportional to 9,874,387.18, 13,620,695.82 and 6,521,574.03 is: 8,995,836.85
Step by Step Solution
- Step 1: Write the proportion equation
9,874,387.18 : 13,620,695.82 = 6,521,574.03 : x - Step 2: Convert to fraction form
9,874,387.18/13,620,695.82 = 6,521,574.03/x - Step 3: Cross multiply
9,874,387.18x = 13,620,695.82 × 6,521,574.03 - Step 4: Simplify right side
9,874,387.18x = 88,828,376,091,391.91 - Step 5: Solve for x
x = 88,828,376,091,391.91/9,874,387.18 - Step 6: Final answer
x = 8,995,836.85
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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.