Finding the Fourth Proportional to 7,841,220.80, 11,762,414.40 and 2,791,875.20
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Solution
The fourth proportional to 7,841,220.80, 11,762,414.40 and 2,791,875.20 is: 4,188,020.45
Step by Step Solution
- Step 1: Write the proportion equation
7,841,220.80 : 11,762,414.40 = 2,791,875.20 : x - Step 2: Convert to fraction form
7,841,220.80/11,762,414.40 = 2,791,875.20/x - Step 3: Cross multiply
7,841,220.80x = 11,762,414.40 × 2,791,875.20 - Step 4: Simplify right side
7,841,220.80x = 32,839,193,055,482.88 - Step 5: Solve for x
x = 32,839,193,055,482.88/7,841,220.80 - Step 6: Final answer
x = 4,188,020.45
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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.