Finding the Fourth Proportional to 122,212,898.94, 168,650,437.28 and 67,208,755.44
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Solution
The fourth proportional to 122,212,898.94, 168,650,437.28 and 67,208,755.44 is: 92,746,232.95
Step by Step Solution
- Step 1: Write the proportion equation
122,212,898.94 : 168,650,437.28 = 67,208,755.44 : x - Step 2: Convert to fraction form
122,212,898.94/168,650,437.28 = 67,208,755.44/x - Step 3: Cross multiply
122,212,898.94x = 168,650,437.28 × 67,208,755.44 - Step 4: Simplify right side
122,212,898.94x = 11,334,785,994,000,578 - Step 5: Solve for x
x = 11,334,785,994,000,578/122,212,898.94 - Step 6: Final answer
x = 92,746,232.95
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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.