Finding the Fourth Proportional to 18,357,820.80, 27,536,731.20 and 8,791,882.80
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Solution
The fourth proportional to 18,357,820.80, 27,536,731.20 and 8,791,882.80 is: 13,187,824.20
Step by Step Solution
- Step 1: Write the proportion equation
18,357,820.80 : 27,536,731.20 = 8,791,882.80 : x - Step 2: Convert to fraction form
18,357,820.80/27,536,731.20 = 8,791,882.80/x - Step 3: Cross multiply
18,357,820.80x = 27,536,731.20 × 8,791,882.80 - Step 4: Simplify right side
18,357,820.80x = 242,099,713,405,503.38 - Step 5: Solve for x
x = 242,099,713,405,503.38/18,357,820.80 - Step 6: Final answer
x = 13,187,824.20
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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.