Finding the Fourth Proportional to 71,706,850.80, 107,560,276.20 and 65,728,139.55
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Solution
The fourth proportional to 71,706,850.80, 107,560,276.20 and 65,728,139.55 is: 98,592,209.33
Step by Step Solution
- Step 1: Write the proportion equation
71,706,850.80 : 107,560,276.20 = 65,728,139.55 : x - Step 2: Convert to fraction form
71,706,850.80/107,560,276.20 = 65,728,139.55/x - Step 3: Cross multiply
71,706,850.80x = 107,560,276.20 × 65,728,139.55 - Step 4: Simplify right side
71,706,850.80x = 7,069,736,844,110,144 - Step 5: Solve for x
x = 7,069,736,844,110,144/71,706,850.80 - Step 6: Final answer
x = 98,592,209.33
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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.