Finding the Fourth Proportional to 122,223,153.92, 168,671,143.68 and 67,220,453.84
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Solution
The fourth proportional to 122,223,153.92, 168,671,143.68 and 67,220,453.84 is: 92,765,981.44
Step by Step Solution
- Step 1: Write the proportion equation
122,223,153.92 : 168,671,143.68 = 67,220,453.84 : x - Step 2: Convert to fraction form
122,223,153.92/168,671,143.68 = 67,220,453.84/x - Step 3: Cross multiply
122,223,153.92x = 168,671,143.68 × 67,220,453.84 - Step 4: Simplify right side
122,223,153.92x = 11,338,150,827,881,448 - Step 5: Solve for x
x = 11,338,150,827,881,448/122,223,153.92 - Step 6: Final answer
x = 92,765,981.44
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1.5x scale
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.