Finding the Fourth Proportional to 103,177,919.76, 142,331,260.26 and 61,332,220.80
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Solution
The fourth proportional to 103,177,919.76, 142,331,260.26 and 61,332,220.80 is: 84,606,205.49
Step by Step Solution
- Step 1: Write the proportion equation
103,177,919.76 : 142,331,260.26 = 61,332,220.80 : x - Step 2: Convert to fraction form
103,177,919.76/142,331,260.26 = 61,332,220.80/x - Step 3: Cross multiply
103,177,919.76x = 142,331,260.26 × 61,332,220.80 - Step 4: Simplify right side
103,177,919.76x = 8,729,492,281,008,584 - Step 5: Solve for x
x = 8,729,492,281,008,584/103,177,919.76 - Step 6: Final answer
x = 84,606,205.49
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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.