Finding the Fourth Proportional to 3,360,948,749.76, 4,638,515,985.01 and 1,912,876,679.05
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Solution
The fourth proportional to 3,360,948,749.76, 4,638,515,985.01 and 1,912,876,679.05 is: 2,640,001,295.39
Step by Step Solution
- Step 1: Write the proportion equation
3,360,948,749.76 : 4,638,515,985.01 = 1,912,876,679.05 : x - Step 2: Convert to fraction form
3,360,948,749.76/4,638,515,985.01 = 1,912,876,679.05/x - Step 3: Cross multiply
3,360,948,749.76x = 4,638,515,985.01 × 1,912,876,679.05 - Step 4: Simplify right side
3,360,948,749.76x = 8,872,909,053,132,274,688 - Step 5: Solve for x
x = 8,872,909,053,132,274,688/3,360,948,749.76 - Step 6: Final answer
x = 2,640,001,295.39
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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.