Finding the Fourth Proportional to 221,708,621.34, 305,944,751.58 and 122,581,588.82
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Solution
The fourth proportional to 221,708,621.34, 305,944,751.58 and 122,581,588.82 is: 169,155,324.28
Step by Step Solution
- Step 1: Write the proportion equation
221,708,621.34 : 305,944,751.58 = 122,581,588.82 : x - Step 2: Convert to fraction form
221,708,621.34/305,944,751.58 = 122,581,588.82/x - Step 3: Cross multiply
221,708,621.34x = 305,944,751.58 × 122,581,588.82 - Step 4: Simplify right side
221,708,621.34x = 37,503,193,737,827,200 - Step 5: Solve for x
x = 37,503,193,737,827,200/221,708,621.34 - Step 6: Final answer
x = 169,155,324.28
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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.