Finding the Fourth Proportional to 4,797,178.16, 6,620,123.14 and 2,621,720.66
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Solution
The fourth proportional to 4,797,178.16, 6,620,123.14 and 2,621,720.66 is: 3,617,983.95
Step by Step Solution
- Step 1: Write the proportion equation
4,797,178.16 : 6,620,123.14 = 2,621,720.66 : x - Step 2: Convert to fraction form
4,797,178.16/6,620,123.14 = 2,621,720.66/x - Step 3: Cross multiply
4,797,178.16x = 6,620,123.14 × 2,621,720.66 - Step 4: Simplify right side
4,797,178.16x = 17,356,113,568,227.15 - Step 5: Solve for x
x = 17,356,113,568,227.15/4,797,178.16 - Step 6: Final answer
x = 3,617,983.95
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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.