Finding the Fourth Proportional to 38,945,261.04, 53,740,853.52 and 21,541,231.68
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Solution
The fourth proportional to 38,945,261.04, 53,740,853.52 and 21,541,231.68 is: 29,724,904.79
Step by Step Solution
- Step 1: Write the proportion equation
38,945,261.04 : 53,740,853.52 = 21,541,231.68 : x - Step 2: Convert to fraction form
38,945,261.04/53,740,853.52 = 21,541,231.68/x - Step 3: Cross multiply
38,945,261.04x = 53,740,853.52 × 21,541,231.68 - Step 4: Simplify right side
38,945,261.04x = 1,157,644,176,355,263.50 - Step 5: Solve for x
x = 1,157,644,176,355,263.50/38,945,261.04 - Step 6: Final answer
x = 29,724,904.79
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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.