Finding the Fourth Proportional to 27,219,659.80, 40,829,489.70 and 12,103,115.80
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Solution
The fourth proportional to 27,219,659.80, 40,829,489.70 and 12,103,115.80 is: 18,154,673.70
Step by Step Solution
- Step 1: Write the proportion equation
27,219,659.80 : 40,829,489.70 = 12,103,115.80 : x - Step 2: Convert to fraction form
27,219,659.80/40,829,489.70 = 12,103,115.80/x - Step 3: Cross multiply
27,219,659.80x = 40,829,489.70 × 12,103,115.80 - Step 4: Simplify right side
27,219,659.80x = 494,164,041,894,007.31 - Step 5: Solve for x
x = 494,164,041,894,007.31/27,219,659.80 - Step 6: Final answer
x = 18,154,673.70
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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.