Finding the Fourth Proportional to 38,654,643.66, 57,855,795.93 and 28,416,793.02
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Solution
The fourth proportional to 38,654,643.66, 57,855,795.93 and 28,416,793.02 is: 42,532,436.53
Step by Step Solution
- Step 1: Write the proportion equation
38,654,643.66 : 57,855,795.93 = 28,416,793.02 : x - Step 2: Convert to fraction form
38,654,643.66/57,855,795.93 = 28,416,793.02/x - Step 3: Cross multiply
38,654,643.66x = 57,855,795.93 × 28,416,793.02 - Step 4: Simplify right side
38,654,643.66x = 1,644,076,177,950,168.25 - Step 5: Solve for x
x = 1,644,076,177,950,168.25/38,654,643.66 - Step 6: Final answer
x = 42,532,436.53
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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.