Finding the Fourth Proportional to 38,092,621.68, 52,568,197.29 and 20,689,306.74
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Solution
The fourth proportional to 38,092,621.68, 52,568,197.29 and 20,689,306.74 is: 28,551,449.35
Step by Step Solution
- Step 1: Write the proportion equation
38,092,621.68 : 52,568,197.29 = 20,689,306.74 : x - Step 2: Convert to fraction form
38,092,621.68/52,568,197.29 = 20,689,306.74/x - Step 3: Cross multiply
38,092,621.68x = 52,568,197.29 × 20,689,306.74 - Step 4: Simplify right side
38,092,621.68x = 1,087,599,558,501,646.62 - Step 5: Solve for x
x = 1,087,599,558,501,646.62/38,092,621.68 - Step 6: Final answer
x = 28,551,449.35
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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.