Finding the Fourth Proportional to 18,357,781.80, 27,536,672.70 and 8,791,843.80
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Solution
The fourth proportional to 18,357,781.80, 27,536,672.70 and 8,791,843.80 is: 13,187,765.70
Step by Step Solution
- Step 1: Write the proportion equation
18,357,781.80 : 27,536,672.70 = 8,791,843.80 : x - Step 2: Convert to fraction form
18,357,781.80/27,536,672.70 = 8,791,843.80/x - Step 3: Cross multiply
18,357,781.80x = 27,536,672.70 × 8,791,843.80 - Step 4: Simplify right side
18,357,781.80x = 242,098,125,150,124.28 - Step 5: Solve for x
x = 242,098,125,150,124.28/18,357,781.80 - Step 6: Final answer
x = 13,187,765.70
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1.5x scale
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.