Finding the Fourth Proportional to 8,290,246.80, 12,437,119.80 and 2,611,045.20
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Solution
The fourth proportional to 8,290,246.80, 12,437,119.80 and 2,611,045.20 is: 3,917,118.84
Step by Step Solution
- Step 1: Write the proportion equation
8,290,246.80 : 12,437,119.80 = 2,611,045.20 : x - Step 2: Convert to fraction form
8,290,246.80/12,437,119.80 = 2,611,045.20/x - Step 3: Cross multiply
8,290,246.80x = 12,437,119.80 × 2,611,045.20 - Step 4: Simplify right side
8,290,246.80x = 32,473,881,955,614.96 - Step 5: Solve for x
x = 32,473,881,955,614.96/8,290,246.80 - Step 6: Final answer
x = 3,917,118.84
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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.