Finding the Fourth Proportional to 9,874,389.18, 13,620,698.58 and 6,521,576.03
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Solution
The fourth proportional to 9,874,389.18, 13,620,698.58 and 6,521,576.03 is: 8,995,839.62
Step by Step Solution
- Step 1: Write the proportion equation
9,874,389.18 : 13,620,698.58 = 6,521,576.03 : x - Step 2: Convert to fraction form
9,874,389.18/13,620,698.58 = 6,521,576.03/x - Step 3: Cross multiply
9,874,389.18x = 13,620,698.58 × 6,521,576.03 - Step 4: Simplify right side
9,874,389.18x = 88,828,421,371,183.05 - Step 5: Solve for x
x = 88,828,421,371,183.05/9,874,389.18 - Step 6: Final answer
x = 8,995,839.62
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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.