Finding the Fourth Proportional to 4,215,729.16, 5,817,709.68 and 2,281,983.76
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Solution
The fourth proportional to 4,215,729.16, 5,817,709.68 and 2,281,983.76 is: 3,149,139.45
Step by Step Solution
- Step 1: Write the proportion equation
4,215,729.16 : 5,817,709.68 = 2,281,983.76 : x - Step 2: Convert to fraction form
4,215,729.16/5,817,709.68 = 2,281,983.76/x - Step 3: Cross multiply
4,215,729.16x = 5,817,709.68 × 2,281,983.76 - Step 4: Simplify right side
4,215,729.16x = 13,275,919,010,154.79 - Step 5: Solve for x
x = 13,275,919,010,154.79/4,215,729.16 - Step 6: Final answer
x = 3,149,139.45
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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.