Finding the Fourth Proportional to 8,991,409.55, 12,409,281.61 and 5,896,536.64
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Solution
The fourth proportional to 8,991,409.55, 12,409,281.61 and 5,896,536.64 is: 8,137,965.83
Step by Step Solution
- Step 1: Write the proportion equation
8,991,409.55 : 12,409,281.61 = 5,896,536.64 : x - Step 2: Convert to fraction form
8,991,409.55/12,409,281.61 = 5,896,536.64/x - Step 3: Cross multiply
8,991,409.55x = 12,409,281.61 × 5,896,536.64 - Step 4: Simplify right side
8,991,409.55x = 73,171,783,643,678.64 - Step 5: Solve for x
x = 73,171,783,643,678.64/8,991,409.55 - Step 6: Final answer
x = 8,137,965.83
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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.