Finding the Fourth Proportional to 3,762,839.78, 5,192,631.77 and 2,192,871.53
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Solution
The fourth proportional to 3,762,839.78, 5,192,631.77 and 2,192,871.53 is: 3,026,111.94
Step by Step Solution
- Step 1: Write the proportion equation
3,762,839.78 : 5,192,631.77 = 2,192,871.53 : x - Step 2: Convert to fraction form
3,762,839.78/5,192,631.77 = 2,192,871.53/x - Step 3: Cross multiply
3,762,839.78x = 5,192,631.77 × 2,192,871.53 - Step 4: Simplify right side
3,762,839.78x = 11,386,774,374,206.51 - Step 5: Solve for x
x = 11,386,774,374,206.51/3,762,839.78 - Step 6: Final answer
x = 3,026,111.94
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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.