Finding the Fourth Proportional to 122,753,190.24, 169,398,568.08 and 67,749,045.12
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Solution
The fourth proportional to 122,753,190.24, 169,398,568.08 and 67,749,045.12 is: 93,493,221.72
Step by Step Solution
- Step 1: Write the proportion equation
122,753,190.24 : 169,398,568.08 = 67,749,045.12 : x - Step 2: Convert to fraction form
122,753,190.24/169,398,568.08 = 67,749,045.12/x - Step 3: Cross multiply
122,753,190.24x = 169,398,568.08 × 67,749,045.12 - Step 4: Simplify right side
122,753,190.24x = 11,476,591,232,115,314 - Step 5: Solve for x
x = 11,476,591,232,115,314/122,753,190.24 - Step 6: Final answer
x = 93,493,221.72
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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.