Finding the Fourth Proportional to 5,187,376.76, 7,781,438.34 and 1,992,503.07
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Solution
The fourth proportional to 5,187,376.76, 7,781,438.34 and 1,992,503.07 is: 2,988,897.96
Step by Step Solution
- Step 1: Write the proportion equation
5,187,376.76 : 7,781,438.34 = 1,992,503.07 : x - Step 2: Convert to fraction form
5,187,376.76/7,781,438.34 = 1,992,503.07/x - Step 3: Cross multiply
5,187,376.76x = 7,781,438.34 × 1,992,503.07 - Step 4: Simplify right side
5,187,376.76x = 15,504,539,781,465.70 - Step 5: Solve for x
x = 15,504,539,781,465.70/5,187,376.76 - Step 6: Final answer
x = 2,988,897.96
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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.