Finding the Fourth Proportional to 19,683,087.20, 29,524,630.80 and 10,117,149.20
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Solution
The fourth proportional to 19,683,087.20, 29,524,630.80 and 10,117,149.20 is: 15,175,723.80
Step by Step Solution
- Step 1: Write the proportion equation
19,683,087.20 : 29,524,630.80 = 10,117,149.20 : x - Step 2: Convert to fraction form
19,683,087.20/29,524,630.80 = 10,117,149.20/x - Step 3: Cross multiply
19,683,087.20x = 29,524,630.80 × 10,117,149.20 - Step 4: Simplify right side
19,683,087.20x = 298,705,094,878,515.38 - Step 5: Solve for x
x = 298,705,094,878,515.38/19,683,087.20 - Step 6: Final answer
x = 15,175,723.80
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1.5x scale
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.