Finding the Fourth Proportional to 3,642,803,645.91, 5,027,070,713.26 and 1,972,052,787.09
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Solution
The fourth proportional to 3,642,803,645.91, 5,027,070,713.26 and 1,972,052,787.09 is: 2,721,433,756.69
Step by Step Solution
- Step 1: Write the proportion equation
3,642,803,645.91 : 5,027,070,713.26 = 1,972,052,787.09 : x - Step 2: Convert to fraction form
3,642,803,645.91/5,027,070,713.26 = 1,972,052,787.09/x - Step 3: Cross multiply
3,642,803,645.91x = 5,027,070,713.26 × 1,972,052,787.09 - Step 4: Simplify right side
3,642,803,645.91x = 9,913,648,810,982,897,664 - Step 5: Solve for x
x = 9,913,648,810,982,897,664/3,642,803,645.91 - Step 6: Final answer
x = 2,721,433,756.69
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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.