Finding the Fourth Proportional to 87,841,556.22, 121,221,358.89 and 48,685,860.84
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Solution
The fourth proportional to 87,841,556.22, 121,221,358.89 and 48,685,860.84 is: 67,186,494.23
Step by Step Solution
- Step 1: Write the proportion equation
87,841,556.22 : 121,221,358.89 = 48,685,860.84 : x - Step 2: Convert to fraction form
87,841,556.22/121,221,358.89 = 48,685,860.84/x - Step 3: Cross multiply
87,841,556.22x = 121,221,358.89 × 48,685,860.84 - Step 4: Simplify right side
87,841,556.22x = 5,901,766,209,754,237 - Step 5: Solve for x
x = 5,901,766,209,754,237/87,841,556.22 - Step 6: Final answer
x = 67,186,494.23
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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.