Finding the Fourth Proportional to 8,686,490.84, 13,029,836.52 and 2,621,275.08
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Solution
The fourth proportional to 8,686,490.84, 13,029,836.52 and 2,621,275.08 is: 3,931,942.87
Step by Step Solution
- Step 1: Write the proportion equation
8,686,490.84 : 13,029,836.52 = 2,621,275.08 : x - Step 2: Convert to fraction form
8,686,490.84/13,029,836.52 = 2,621,275.08/x - Step 3: Cross multiply
8,686,490.84x = 13,029,836.52 × 2,621,275.08 - Step 4: Simplify right side
8,686,490.84x = 34,154,785,766,349.92 - Step 5: Solve for x
x = 34,154,785,766,349.92/8,686,490.84 - Step 6: Final answer
x = 3,931,942.87
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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.