Finding the Fourth Proportional to 3,956,267,895.28, 5,459,660,438.90 and 2,172,236,902.08
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Solution
The fourth proportional to 3,956,267,895.28, 5,459,660,438.90 and 2,172,236,902.08 is: 2,997,692,823.67
Step by Step Solution
- Step 1: Write the proportion equation
3,956,267,895.28 : 5,459,660,438.90 = 2,172,236,902.08 : x - Step 2: Convert to fraction form
3,956,267,895.28/5,459,660,438.90 = 2,172,236,902.08/x - Step 3: Cross multiply
3,956,267,895.28x = 5,459,660,438.90 × 2,172,236,902.08 - Step 4: Simplify right side
3,956,267,895.28x = 11,859,675,878,204,868,608 - Step 5: Solve for x
x = 11,859,675,878,204,868,608/3,956,267,895.28 - Step 6: Final answer
x = 2,997,692,823.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.