Finding the Fourth Proportional to 21,221,487.07, 31,832,190.86 and 6,649,522.13
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Solution
The fourth proportional to 21,221,487.07, 31,832,190.86 and 6,649,522.13 is: 9,974,270.74
Step by Step Solution
- Step 1: Write the proportion equation
21,221,487.07 : 31,832,190.86 = 6,649,522.13 : x - Step 2: Convert to fraction form
21,221,487.07/31,832,190.86 = 6,649,522.13/x - Step 3: Cross multiply
21,221,487.07x = 31,832,190.86 × 6,649,522.13 - Step 4: Simplify right side
21,221,487.07x = 211,668,857,616,286.62 - Step 5: Solve for x
x = 211,668,857,616,286.62/21,221,487.07 - Step 6: Final answer
x = 9,974,270.74
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.