Finding the Fourth Proportional to 8,429,635,652.32, 12,639,552,207.36 and 3,189,648,649.92
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Solution
The fourth proportional to 8,429,635,652.32, 12,639,552,207.36 and 3,189,648,649.92 is: 4,782,618,406.85
Step by Step Solution
- Step 1: Write the proportion equation
8,429,635,652.32 : 12,639,552,207.36 = 3,189,648,649.92 : x - Step 2: Convert to fraction form
8,429,635,652.32/12,639,552,207.36 = 3,189,648,649.92/x - Step 3: Cross multiply
8,429,635,652.32x = 12,639,552,207.36 × 3,189,648,649.92 - Step 4: Simplify right side
8,429,635,652.32x = 40,315,730,633,799,180,288 - Step 5: Solve for x
x = 40,315,730,633,799,180,288/8,429,635,652.32 - Step 6: Final answer
x = 4,782,618,406.85
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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.