Finding the Fourth Proportional to 10,664,553.80, 15,996,830.70 and 4,680,921.80
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Solution
The fourth proportional to 10,664,553.80, 15,996,830.70 and 4,680,921.80 is: 7,021,382.70
Step by Step Solution
- Step 1: Write the proportion equation
10,664,553.80 : 15,996,830.70 = 4,680,921.80 : x - Step 2: Convert to fraction form
10,664,553.80/15,996,830.70 = 4,680,921.80/x - Step 3: Cross multiply
10,664,553.80x = 15,996,830.70 × 4,680,921.80 - Step 4: Simplify right side
10,664,553.80x = 74,879,913,554,539.25 - Step 5: Solve for x
x = 74,879,913,554,539.25/10,664,553.80 - Step 6: Final answer
x = 7,021,382.70
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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.