Finding the Fourth Proportional to 75,983,471.68, 113,973,609.12 and 18,476,037.76
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Solution
The fourth proportional to 75,983,471.68, 113,973,609.12 and 18,476,037.76 is: 27,713,667.98
Step by Step Solution
- Step 1: Write the proportion equation
75,983,471.68 : 113,973,609.12 = 18,476,037.76 : x - Step 2: Convert to fraction form
75,983,471.68/113,973,609.12 = 18,476,037.76/x - Step 3: Cross multiply
75,983,471.68x = 113,973,609.12 × 18,476,037.76 - Step 4: Simplify right side
75,983,471.68x = 2,105,780,705,744,600.75 - Step 5: Solve for x
x = 2,105,780,705,744,600.75/75,983,471.68 - Step 6: Final answer
x = 27,713,667.98
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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.