Finding the Fourth Proportional to 7,529,612.87, 10,390,932.36 and 4,091,854.20
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Solution
The fourth proportional to 7,529,612.87, 10,390,932.36 and 4,091,854.20 is: 5,646,794.99
Step by Step Solution
- Step 1: Write the proportion equation
7,529,612.87 : 10,390,932.36 = 4,091,854.20 : x - Step 2: Convert to fraction form
7,529,612.87/10,390,932.36 = 4,091,854.20/x - Step 3: Cross multiply
7,529,612.87x = 10,390,932.36 × 4,091,854.20 - Step 4: Simplify right side
7,529,612.87x = 42,518,180,219,181.91 - Step 5: Solve for x
x = 42,518,180,219,181.91/7,529,612.87 - Step 6: Final answer
x = 5,646,794.99
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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.