Finding the Fourth Proportional to 72,910,390.80, 109,365,586.20 and 29,765,254.80
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Solution
The fourth proportional to 72,910,390.80, 109,365,586.20 and 29,765,254.80 is: 44,647,882.20
Step by Step Solution
- Step 1: Write the proportion equation
72,910,390.80 : 109,365,586.20 = 29,765,254.80 : x - Step 2: Convert to fraction form
72,910,390.80/109,365,586.20 = 29,765,254.80/x - Step 3: Cross multiply
72,910,390.80x = 109,365,586.20 × 29,765,254.80 - Step 4: Simplify right side
72,910,390.80x = 3,255,294,539,594,364 - Step 5: Solve for x
x = 3,255,294,539,594,364/72,910,390.80 - Step 6: Final answer
x = 44,647,882.20
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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.