Finding the Fourth Proportional to 120,415,140.68, 166,177,462.05 and 67,492,826.48
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Solution
The fourth proportional to 120,415,140.68, 166,177,462.05 and 67,492,826.48 is: 93,142,660.86
Step by Step Solution
- Step 1: Write the proportion equation
120,415,140.68 : 166,177,462.05 = 67,492,826.48 : x - Step 2: Convert to fraction form
120,415,140.68/166,177,462.05 = 67,492,826.48/x - Step 3: Cross multiply
120,415,140.68x = 166,177,462.05 × 67,492,826.48 - Step 4: Simplify right side
120,415,140.68x = 11,215,786,610,196,548 - Step 5: Solve for x
x = 11,215,786,610,196,548/120,415,140.68 - Step 6: Final answer
x = 93,142,660.86
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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.