Finding the Fourth Proportional to 57,842,721.06, 79,823,106.66 and 31,381,073.54
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Solution
The fourth proportional to 57,842,721.06, 79,823,106.66 and 31,381,073.54 is: 43,305,963.72
Step by Step Solution
- Step 1: Write the proportion equation
57,842,721.06 : 79,823,106.66 = 31,381,073.54 : x - Step 2: Convert to fraction form
57,842,721.06/79,823,106.66 = 31,381,073.54/x - Step 3: Cross multiply
57,842,721.06x = 79,823,106.66 × 31,381,073.54 - Step 4: Simplify right side
57,842,721.06x = 2,504,934,779,889,608 - Step 5: Solve for x
x = 2,504,934,779,889,608/57,842,721.06 - Step 6: Final answer
x = 43,305,963.72
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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.