Finding the Fourth Proportional to 18,438,332.10, 27,657,498.15 and 16,611,749.70
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Solution
The fourth proportional to 18,438,332.10, 27,657,498.15 and 16,611,749.70 is: 24,917,624.55
Step by Step Solution
- Step 1: Write the proportion equation
18,438,332.10 : 27,657,498.15 = 16,611,749.70 : x - Step 2: Convert to fraction form
18,438,332.10/27,657,498.15 = 16,611,749.70/x - Step 3: Cross multiply
18,438,332.10x = 27,657,498.15 × 16,611,749.70 - Step 4: Simplify right side
18,438,332.10x = 459,439,436,596,013 - Step 5: Solve for x
x = 459,439,436,596,013/18,438,332.10 - Step 6: Final answer
x = 24,917,624.55
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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.