Finding the Fourth Proportional to 6,618,515.96, 9,132,557.16 and 3,717,351.08
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Solution
The fourth proportional to 6,618,515.96, 9,132,557.16 and 3,717,351.08 is: 5,129,385.72
Step by Step Solution
- Step 1: Write the proportion equation
6,618,515.96 : 9,132,557.16 = 3,717,351.08 : x - Step 2: Convert to fraction form
6,618,515.96/9,132,557.16 = 3,717,351.08/x - Step 3: Cross multiply
6,618,515.96x = 9,132,557.16 × 3,717,351.08 - Step 4: Simplify right side
6,618,515.96x = 33,948,921,221,887.73 - Step 5: Solve for x
x = 33,948,921,221,887.73/6,618,515.96 - Step 6: Final answer
x = 5,129,385.72
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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.