Finding the Fourth Proportional to 7,771,937.80, 11,657,906.70 and 5,656,865.80
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Solution
The fourth proportional to 7,771,937.80, 11,657,906.70 and 5,656,865.80 is: 8,485,298.70
Step by Step Solution
- Step 1: Write the proportion equation
7,771,937.80 : 11,657,906.70 = 5,656,865.80 : x - Step 2: Convert to fraction form
7,771,937.80/11,657,906.70 = 5,656,865.80/x - Step 3: Cross multiply
7,771,937.80x = 11,657,906.70 × 5,656,865.80 - Step 4: Simplify right side
7,771,937.80x = 65,947,213,710,820.85 - Step 5: Solve for x
x = 65,947,213,710,820.85/7,771,937.80 - Step 6: Final answer
x = 8,485,298.70
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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.