Finding the Fourth Proportional to 3,386,212.80, 4,671,643.37 and 1,935,129.75
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Solution
The fourth proportional to 3,386,212.80, 4,671,643.37 and 1,935,129.75 is: 2,669,718.82
Step by Step Solution
- Step 1: Write the proportion equation
3,386,212.80 : 4,671,643.37 = 1,935,129.75 : x - Step 2: Convert to fraction form
3,386,212.80/4,671,643.37 = 1,935,129.75/x - Step 3: Cross multiply
3,386,212.80x = 4,671,643.37 × 1,935,129.75 - Step 4: Simplify right side
3,386,212.80x = 9,040,236,057,001.61 - Step 5: Solve for x
x = 9,040,236,057,001.61/3,386,212.80 - Step 6: Final answer
x = 2,669,718.82
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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.