Finding the Fourth Proportional to 122,218,820.44, 168,658,609.98 and 67,214,679.64
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Solution
The fourth proportional to 122,218,820.44, 168,658,609.98 and 67,214,679.64 is: 92,754,408.83
Step by Step Solution
- Step 1: Write the proportion equation
122,218,820.44 : 168,658,609.98 = 67,214,679.64 : x - Step 2: Convert to fraction form
122,218,820.44/168,658,609.98 = 67,214,679.64/x - Step 3: Cross multiply
122,218,820.44x = 168,658,609.98 × 67,214,679.64 - Step 4: Simplify right side
122,218,820.44x = 11,336,334,438,333,406 - Step 5: Solve for x
x = 11,336,334,438,333,406/122,218,820.44 - Step 6: Final answer
x = 92,754,408.83
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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.