Finding the Fourth Proportional to 18,331,807.80, 27,497,711.70 and 8,254,111.80
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Solution
The fourth proportional to 18,331,807.80, 27,497,711.70 and 8,254,111.80 is: 12,381,167.70
Step by Step Solution
- Step 1: Write the proportion equation
18,331,807.80 : 27,497,711.70 = 8,254,111.80 : x - Step 2: Convert to fraction form
18,331,807.80/27,497,711.70 = 8,254,111.80/x - Step 3: Cross multiply
18,331,807.80x = 27,497,711.70 × 8,254,111.80 - Step 4: Simplify right side
18,331,807.80x = 226,969,186,615,968.06 - Step 5: Solve for x
x = 226,969,186,615,968.06/18,331,807.80 - Step 6: Final answer
x = 12,381,167.70
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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.