Finding the Fourth Proportional to 5,122,469.74, 7,069,109.61 and 2,799,506.11
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Solution
The fourth proportional to 5,122,469.74, 7,069,109.61 and 2,799,506.11 is: 3,863,373.83
Step by Step Solution
- Step 1: Write the proportion equation
5,122,469.74 : 7,069,109.61 = 2,799,506.11 : x - Step 2: Convert to fraction form
5,122,469.74/7,069,109.61 = 2,799,506.11/x - Step 3: Cross multiply
5,122,469.74x = 7,069,109.61 × 2,799,506.11 - Step 4: Simplify right side
5,122,469.74x = 19,790,015,545,454.72 - Step 5: Solve for x
x = 19,790,015,545,454.72/5,122,469.74 - Step 6: Final answer
x = 3,863,373.83
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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.