Finding the Fourth Proportional to 121,789,215.20, 182,683,822.80 and 57,219,133.70
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Solution
The fourth proportional to 121,789,215.20, 182,683,822.80 and 57,219,133.70 is: 85,828,700.55
Step by Step Solution
- Step 1: Write the proportion equation
121,789,215.20 : 182,683,822.80 = 57,219,133.70 : x - Step 2: Convert to fraction form
121,789,215.20/182,683,822.80 = 57,219,133.70/x - Step 3: Cross multiply
121,789,215.20x = 182,683,822.80 × 57,219,133.70 - Step 4: Simplify right side
121,789,215.20x = 10,453,010,081,620,310 - Step 5: Solve for x
x = 10,453,010,081,620,310/121,789,215.20 - Step 6: Final answer
x = 85,828,700.55
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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.