Finding the Fourth Proportional to 7,972,856.55, 11,961,189.50 and 2,581,512.75
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Solution
The fourth proportional to 7,972,856.55, 11,961,189.50 and 2,581,512.75 is: 3,872,885.83
Step by Step Solution
- Step 1: Write the proportion equation
7,972,856.55 : 11,961,189.50 = 2,581,512.75 : x - Step 2: Convert to fraction form
7,972,856.55/11,961,189.50 = 2,581,512.75/x - Step 3: Cross multiply
7,972,856.55x = 11,961,189.50 × 2,581,512.75 - Step 4: Simplify right side
7,972,856.55x = 30,877,963,186,508.56 - Step 5: Solve for x
x = 30,877,963,186,508.56/7,972,856.55 - Step 6: Final answer
x = 3,872,885.83
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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.