Finding the Fourth Proportional to 13,759,812.57, 18,988,553.52 and 7,564,964.70
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Solution
The fourth proportional to 13,759,812.57, 18,988,553.52 and 7,564,964.70 is: 10,439,657.98
Step by Step Solution
- Step 1: Write the proportion equation
13,759,812.57 : 18,988,553.52 = 7,564,964.70 : x - Step 2: Convert to fraction form
13,759,812.57/18,988,553.52 = 7,564,964.70/x - Step 3: Cross multiply
13,759,812.57x = 18,988,553.52 × 7,564,964.70 - Step 4: Simplify right side
13,759,812.57x = 143,647,737,082,860.75 - Step 5: Solve for x
x = 143,647,737,082,860.75/13,759,812.57 - Step 6: Final answer
x = 10,439,657.98
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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.