Finding the Fourth Proportional to 3,896,408.22, 5,376,577.28 and 2,153,842.13
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Solution
The fourth proportional to 3,896,408.22, 5,376,577.28 and 2,153,842.13 is: 2,972,044.50
Step by Step Solution
- Step 1: Write the proportion equation
3,896,408.22 : 5,376,577.28 = 2,153,842.13 : x - Step 2: Convert to fraction form
3,896,408.22/5,376,577.28 = 2,153,842.13/x - Step 3: Cross multiply
3,896,408.22x = 5,376,577.28 × 2,153,842.13 - Step 4: Simplify right side
3,896,408.22x = 11,580,298,623,212.71 - Step 5: Solve for x
x = 11,580,298,623,212.71/3,896,408.22 - Step 6: Final answer
x = 2,972,044.50
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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.