Finding the Fourth Proportional to 123,210,452.94, 170,031,768.75 and 68,207,227.98
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Solution
The fourth proportional to 123,210,452.94, 170,031,768.75 and 68,207,227.98 is: 94,126,718.46
Step by Step Solution
- Step 1: Write the proportion equation
123,210,452.94 : 170,031,768.75 = 68,207,227.98 : x - Step 2: Convert to fraction form
123,210,452.94/170,031,768.75 = 68,207,227.98/x - Step 3: Cross multiply
123,210,452.94x = 170,031,768.75 × 68,207,227.98 - Step 4: Simplify right side
123,210,452.94x = 11,597,395,614,973,890 - Step 5: Solve for x
x = 11,597,395,614,973,890/123,210,452.94 - Step 6: Final answer
x = 94,126,718.46
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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.