Finding the Fourth Proportional to 80,734,166.80, 121,101,250.20 and 66,385,259.80
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Solution
The fourth proportional to 80,734,166.80, 121,101,250.20 and 66,385,259.80 is: 99,577,889.70
Step by Step Solution
- Step 1: Write the proportion equation
80,734,166.80 : 121,101,250.20 = 66,385,259.80 : x - Step 2: Convert to fraction form
80,734,166.80/121,101,250.20 = 66,385,259.80/x - Step 3: Cross multiply
80,734,166.80x = 121,101,250.20 × 66,385,259.80 - Step 4: Simplify right side
80,734,166.80x = 8,039,337,956,631,802 - Step 5: Solve for x
x = 8,039,337,956,631,802/80,734,166.80 - Step 6: Final answer
x = 99,577,889.70
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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.