Finding the Fourth Proportional to 38,248,478.44, 52,784,771.61 and 21,508,486.42
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Solution
The fourth proportional to 38,248,478.44, 52,784,771.61 and 21,508,486.42 is: 29,682,763.59
Step by Step Solution
- Step 1: Write the proportion equation
38,248,478.44 : 52,784,771.61 = 21,508,486.42 : x - Step 2: Convert to fraction form
38,248,478.44/52,784,771.61 = 21,508,486.42/x - Step 3: Cross multiply
38,248,478.44x = 52,784,771.61 × 21,508,486.42 - Step 4: Simplify right side
38,248,478.44x = 1,135,320,543,356,486.50 - Step 5: Solve for x
x = 1,135,320,543,356,486.50/38,248,478.44 - Step 6: Final answer
x = 29,682,763.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.