Finding the Fourth Proportional to 75,656,876.80, 113,485,315.20 and 52,565,267.20
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Solution
The fourth proportional to 75,656,876.80, 113,485,315.20 and 52,565,267.20 is: 78,847,900.80
Step by Step Solution
- Step 1: Write the proportion equation
75,656,876.80 : 113,485,315.20 = 52,565,267.20 : x - Step 2: Convert to fraction form
75,656,876.80/113,485,315.20 = 52,565,267.20/x - Step 3: Cross multiply
75,656,876.80x = 113,485,315.20 × 52,565,267.20 - Step 4: Simplify right side
75,656,876.80x = 5,965,385,916,764,222 - Step 5: Solve for x
x = 5,965,385,916,764,222/75,656,876.80 - Step 6: Final answer
x = 78,847,900.80
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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.