Finding the Fourth Proportional to 66,361,867.80, 99,542,801.70 and 55,024,459.80
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Solution
The fourth proportional to 66,361,867.80, 99,542,801.70 and 55,024,459.80 is: 82,536,689.70
Step by Step Solution
- Step 1: Write the proportion equation
66,361,867.80 : 99,542,801.70 = 55,024,459.80 : x - Step 2: Convert to fraction form
66,361,867.80/99,542,801.70 = 55,024,459.80/x - Step 3: Cross multiply
66,361,867.80x = 99,542,801.70 × 55,024,459.80 - Step 4: Simplify right side
66,361,867.80x = 5,477,288,890,521,022 - Step 5: Solve for x
x = 5,477,288,890,521,022/66,361,867.80 - Step 6: Final answer
x = 82,536,689.70
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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.