Finding the Fourth Proportional to 80,968,163.10, 121,452,244.65 and 73,157,948.70
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Solution
The fourth proportional to 80,968,163.10, 121,452,244.65 and 73,157,948.70 is: 109,736,923.05
Step by Step Solution
- Step 1: Write the proportion equation
80,968,163.10 : 121,452,244.65 = 73,157,948.70 : x - Step 2: Convert to fraction form
80,968,163.10/121,452,244.65 = 73,157,948.70/x - Step 3: Cross multiply
80,968,163.10x = 121,452,244.65 × 73,157,948.70 - Step 4: Simplify right side
80,968,163.10x = 8,885,197,083,604,550 - Step 5: Solve for x
x = 8,885,197,083,604,550/80,968,163.10 - Step 6: Final answer
x = 109,736,923.05
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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.