Finding the Fourth Proportional to 38,255,739.40, 57,387,055.16 and 12,348,654.99
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Solution
The fourth proportional to 38,255,739.40, 57,387,055.16 and 12,348,654.99 is: 18,524,094.85
Step by Step Solution
- Step 1: Write the proportion equation
38,255,739.40 : 57,387,055.16 = 12,348,654.99 : x - Step 2: Convert to fraction form
38,255,739.40/57,387,055.16 = 12,348,654.99/x - Step 3: Cross multiply
38,255,739.40x = 57,387,055.16 × 12,348,654.99 - Step 4: Simplify right side
38,255,739.40x = 708,652,945,062,939.25 - Step 5: Solve for x
x = 708,652,945,062,939.25/38,255,739.40 - Step 6: Final answer
x = 18,524,094.85
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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.