Finding the Fourth Proportional to 47,721,440.68, 65,863,067.70 and 28,144,480.84
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Solution
The fourth proportional to 47,721,440.68, 65,863,067.70 and 28,144,480.84 is: 38,843,794.75
Step by Step Solution
- Step 1: Write the proportion equation
47,721,440.68 : 65,863,067.70 = 28,144,480.84 : x - Step 2: Convert to fraction form
47,721,440.68/65,863,067.70 = 28,144,480.84/x - Step 3: Cross multiply
47,721,440.68x = 65,863,067.70 × 28,144,480.84 - Step 4: Simplify right side
47,721,440.68x = 1,853,681,846,946,273 - Step 5: Solve for x
x = 1,853,681,846,946,273/47,721,440.68 - Step 6: Final answer
x = 38,843,794.75
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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.