Finding the Fourth Proportional to 3,101,277.52, 4,279,135.86 and 1,811,868.79
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Solution
The fourth proportional to 3,101,277.52, 4,279,135.86 and 1,811,868.79 is: 2,500,012.55
Step by Step Solution
- Step 1: Write the proportion equation
3,101,277.52 : 4,279,135.86 = 1,811,868.79 : x - Step 2: Convert to fraction form
3,101,277.52/4,279,135.86 = 1,811,868.79/x - Step 3: Cross multiply
3,101,277.52x = 4,279,135.86 × 1,811,868.79 - Step 4: Simplify right side
3,101,277.52x = 7,753,232,712,903.81 - Step 5: Solve for x
x = 7,753,232,712,903.81/3,101,277.52 - Step 6: Final answer
x = 2,500,012.55
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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.