Finding the Fourth Proportional to 80,882,021.05, 121,323,031.58 and 80,882,021.05
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Solution
The fourth proportional to 80,882,021.05, 121,323,031.58 and 80,882,021.05 is: 121,323,031.58
Step by Step Solution
- Step 1: Write the proportion equation
80,882,021.05 : 121,323,031.58 = 80,882,021.05 : x - Step 2: Convert to fraction form
80,882,021.05/121,323,031.58 = 80,882,021.05/x - Step 3: Cross multiply
80,882,021.05x = 121,323,031.58 × 80,882,021.05 - Step 4: Simplify right side
80,882,021.05x = 9,812,851,993,698,964 - Step 5: Solve for x
x = 9,812,851,993,698,964/80,882,021.05 - Step 6: Final answer
x = 121,323,031.58
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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.