Finding the Fourth Proportional to 3,621,672,117.80, 5,432,508,176.70 and 1,878,279,917.30
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Solution
The fourth proportional to 3,621,672,117.80, 5,432,508,176.70 and 1,878,279,917.30 is: 2,817,419,875.95
Step by Step Solution
- Step 1: Write the proportion equation
3,621,672,117.80 : 5,432,508,176.70 = 1,878,279,917.30 : x - Step 2: Convert to fraction form
3,621,672,117.80/5,432,508,176.70 = 1,878,279,917.30/x - Step 3: Cross multiply
3,621,672,117.80x = 5,432,508,176.70 × 1,878,279,917.30 - Step 4: Simplify right side
3,621,672,117.80x = 10,203,771,008,863,649,792 - Step 5: Solve for x
x = 10,203,771,008,863,649,792/3,621,672,117.80 - Step 6: Final answer
x = 2,817,419,875.95
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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.