Finding the Fourth Proportional to 73,872,328.80, 110,808,493.20 and 39,860,104.80
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Solution
The fourth proportional to 73,872,328.80, 110,808,493.20 and 39,860,104.80 is: 59,790,157.20
Step by Step Solution
- Step 1: Write the proportion equation
73,872,328.80 : 110,808,493.20 = 39,860,104.80 : x - Step 2: Convert to fraction form
73,872,328.80/110,808,493.20 = 39,860,104.80/x - Step 3: Cross multiply
73,872,328.80x = 110,808,493.20 × 39,860,104.80 - Step 4: Simplify right side
73,872,328.80x = 4,416,838,151,682,087 - Step 5: Solve for x
x = 4,416,838,151,682,087/73,872,328.80 - Step 6: Final answer
x = 59,790,157.20
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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.