Finding the Fourth Proportional to 3,914,385,765.12, 5,402,990,638.28 and 2,558,223,679.26
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Solution
The fourth proportional to 3,914,385,765.12, 5,402,990,638.28 and 2,558,223,679.26 is: 3,531,092,595.12
Step by Step Solution
- Step 1: Write the proportion equation
3,914,385,765.12 : 5,402,990,638.28 = 2,558,223,679.26 : x - Step 2: Convert to fraction form
3,914,385,765.12/5,402,990,638.28 = 2,558,223,679.26/x - Step 3: Cross multiply
3,914,385,765.12x = 5,402,990,638.28 × 2,558,223,679.26 - Step 4: Simplify right side
3,914,385,765.12x = 13,822,058,589,667,997,696 - Step 5: Solve for x
x = 13,822,058,589,667,997,696/3,914,385,765.12 - Step 6: Final answer
x = 3,531,092,595.12
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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.