Finding the Fourth Proportional to 10,358,805.20, 14,290,616.21 and 9,878,540.00
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Solution
The fourth proportional to 10,358,805.20, 14,290,616.21 and 9,878,540.00 is: 13,628,060.49
Step by Step Solution
- Step 1: Write the proportion equation
10,358,805.20 : 14,290,616.21 = 9,878,540.00 : x - Step 2: Convert to fraction form
10,358,805.20/14,290,616.21 = 9,878,540.00/x - Step 3: Cross multiply
10,358,805.20x = 14,290,616.21 × 9,878,540.00 - Step 4: Simplify right side
10,358,805.20x = 141,170,423,915,556.28 - Step 5: Solve for x
x = 141,170,423,915,556.28/10,358,805.20 - Step 6: Final answer
x = 13,628,060.49
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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.