Finding the Fourth Proportional to 3,185,964.40, 4,771,073.40 and 2,115,209.20
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Solution
The fourth proportional to 3,185,964.40, 4,771,073.40 and 2,115,209.20 is: 3,167,586.67
Step by Step Solution
- Step 1: Write the proportion equation
3,185,964.40 : 4,771,073.40 = 2,115,209.20 : x - Step 2: Convert to fraction form
3,185,964.40/4,771,073.40 = 2,115,209.20/x - Step 3: Cross multiply
3,185,964.40x = 4,771,073.40 × 2,115,209.20 - Step 4: Simplify right side
3,185,964.40x = 10,091,818,349,555.28 - Step 5: Solve for x
x = 10,091,818,349,555.28/3,185,964.40 - Step 6: Final answer
x = 3,167,586.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.