Finding the Fourth Proportional to 7,158,775.92, 9,879,318.66 and 3,895,801.08
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Solution
The fourth proportional to 7,158,775.92, 9,879,318.66 and 3,895,801.08 is: 5,376,318.63
Step by Step Solution
- Step 1: Write the proportion equation
7,158,775.92 : 9,879,318.66 = 3,895,801.08 : x - Step 2: Convert to fraction form
7,158,775.92/9,879,318.66 = 3,895,801.08/x - Step 3: Cross multiply
7,158,775.92x = 9,879,318.66 × 3,895,801.08 - Step 4: Simplify right side
7,158,775.92x = 38,487,860,349,775.50 - Step 5: Solve for x
x = 38,487,860,349,775.50/7,158,775.92 - Step 6: Final answer
x = 5,376,318.63
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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.