Finding the Fourth Proportional to 80,750,074.80, 121,125,112.20 and 74,514,500.40
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Solution
The fourth proportional to 80,750,074.80, 121,125,112.20 and 74,514,500.40 is: 111,771,750.60
Step by Step Solution
- Step 1: Write the proportion equation
80,750,074.80 : 121,125,112.20 = 74,514,500.40 : x - Step 2: Convert to fraction form
80,750,074.80/121,125,112.20 = 74,514,500.40/x - Step 3: Cross multiply
80,750,074.80x = 121,125,112.20 × 74,514,500.40 - Step 4: Simplify right side
80,750,074.80x = 9,025,577,221,476,946 - Step 5: Solve for x
x = 9,025,577,221,476,946/80,750,074.80 - Step 6: Final answer
x = 111,771,750.60
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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.