Finding the Fourth Proportional to 7,447,356.10, 11,171,034.15 and 2,655,201.70
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Solution
The fourth proportional to 7,447,356.10, 11,171,034.15 and 2,655,201.70 is: 3,982,802.55
Step by Step Solution
- Step 1: Write the proportion equation
7,447,356.10 : 11,171,034.15 = 2,655,201.70 : x - Step 2: Convert to fraction form
7,447,356.10/11,171,034.15 = 2,655,201.70/x - Step 3: Cross multiply
7,447,356.10x = 11,171,034.15 × 2,655,201.70 - Step 4: Simplify right side
7,447,356.10x = 29,661,348,865,838.06 - Step 5: Solve for x
x = 29,661,348,865,838.06/7,447,356.10 - Step 6: Final answer
x = 3,982,802.55
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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.