Finding the Fourth Proportional to 99,524,813.70, 149,287,220.55 and 82,518,701.70
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Solution
The fourth proportional to 99,524,813.70, 149,287,220.55 and 82,518,701.70 is: 123,778,052.55
Step by Step Solution
- Step 1: Write the proportion equation
99,524,813.70 : 149,287,220.55 = 82,518,701.70 : x - Step 2: Convert to fraction form
99,524,813.70/149,287,220.55 = 82,518,701.70/x - Step 3: Cross multiply
99,524,813.70x = 149,287,220.55 × 82,518,701.70 - Step 4: Simplify right side
99,524,813.70x = 12,318,987,620,187,562 - Step 5: Solve for x
x = 12,318,987,620,187,562/99,524,813.70 - Step 6: Final answer
x = 123,778,052.55
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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.