Finding the Fourth Proportional to 7,919,533.68, 10,929,120.12 and 4,481,773.80
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Solution
The fourth proportional to 7,919,533.68, 10,929,120.12 and 4,481,773.80 is: 6,184,940.45
Step by Step Solution
- Step 1: Write the proportion equation
7,919,533.68 : 10,929,120.12 = 4,481,773.80 : x - Step 2: Convert to fraction form
7,919,533.68/10,929,120.12 = 4,481,773.80/x - Step 3: Cross multiply
7,919,533.68x = 10,929,120.12 × 4,481,773.80 - Step 4: Simplify right side
7,919,533.68x = 48,981,844,210,868.85 - Step 5: Solve for x
x = 48,981,844,210,868.85/7,919,533.68 - Step 6: Final answer
x = 6,184,940.45
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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.