Finding the Fourth Proportional to 80,909,249.60, 121,363,874.40 and 79,565,556.80
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Solution
The fourth proportional to 80,909,249.60, 121,363,874.40 and 79,565,556.80 is: 119,348,335.20
Step by Step Solution
- Step 1: Write the proportion equation
80,909,249.60 : 121,363,874.40 = 79,565,556.80 : x - Step 2: Convert to fraction form
80,909,249.60/121,363,874.40 = 79,565,556.80/x - Step 3: Cross multiply
80,909,249.60x = 121,363,874.40 × 79,565,556.80 - Step 4: Simplify right side
80,909,249.60x = 9,656,384,242,041,266 - Step 5: Solve for x
x = 9,656,384,242,041,266/80,909,249.60 - Step 6: Final answer
x = 119,348,335.20
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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.