Finding the Fourth Proportional to 3,642,695,372.49, 5,026,935,657.09 and 1,971,944,513.69
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Solution
The fourth proportional to 3,642,695,372.49, 5,026,935,657.09 and 1,971,944,513.69 is: 2,721,292,113.67
Step by Step Solution
- Step 1: Write the proportion equation
3,642,695,372.49 : 5,026,935,657.09 = 1,971,944,513.69 : x - Step 2: Convert to fraction form
3,642,695,372.49/5,026,935,657.09 = 1,971,944,513.69/x - Step 3: Cross multiply
3,642,695,372.49x = 5,026,935,657.09 × 1,971,944,513.69 - Step 4: Simplify right side
3,642,695,372.49x = 9,912,838,189,646,125,056 - Step 5: Solve for x
x = 9,912,838,189,646,125,056/3,642,695,372.49 - Step 6: Final answer
x = 2,721,292,113.67
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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.