Finding the Fourth Proportional to 34,208,261.08, 47,189,502.66 and 21,151,346.20
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Solution
The fourth proportional to 34,208,261.08, 47,189,502.66 and 21,151,346.20 is: 29,177,791.45
Step by Step Solution
- Step 1: Write the proportion equation
34,208,261.08 : 47,189,502.66 = 21,151,346.20 : x - Step 2: Convert to fraction form
34,208,261.08/47,189,502.66 = 21,151,346.20/x - Step 3: Cross multiply
34,208,261.08x = 47,189,502.66 × 21,151,346.20 - Step 4: Simplify right side
34,208,261.08x = 998,121,507,767,480.75 - Step 5: Solve for x
x = 998,121,507,767,480.75/34,208,261.08 - Step 6: Final answer
x = 29,177,791.45
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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.