Finding the Fourth Proportional to 8,529,356.80, 12,775,372.80 and 7,409,612.80
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Solution
The fourth proportional to 8,529,356.80, 12,775,372.80 and 7,409,612.80 is: 11,098,206.82
Step by Step Solution
- Step 1: Write the proportion equation
8,529,356.80 : 12,775,372.80 = 7,409,612.80 : x - Step 2: Convert to fraction form
8,529,356.80/12,775,372.80 = 7,409,612.80/x - Step 3: Cross multiply
8,529,356.80x = 12,775,372.80 × 7,409,612.80 - Step 4: Simplify right side
8,529,356.80x = 94,660,565,823,651.84 - Step 5: Solve for x
x = 94,660,565,823,651.84/8,529,356.80 - Step 6: Final answer
x = 11,098,206.82
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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.