Finding the Fourth Proportional to 123,104,470.87, 169,879,149.61 and 70,895,473.75
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Solution
The fourth proportional to 123,104,470.87, 169,879,149.61 and 70,895,473.75 is: 97,832,862.66
Step by Step Solution
- Step 1: Write the proportion equation
123,104,470.87 : 169,879,149.61 = 70,895,473.75 : x - Step 2: Convert to fraction form
123,104,470.87/169,879,149.61 = 70,895,473.75/x - Step 3: Cross multiply
123,104,470.87x = 169,879,149.61 × 70,895,473.75 - Step 4: Simplify right side
123,104,470.87x = 12,043,662,791,848,078 - Step 5: Solve for x
x = 12,043,662,791,848,078/123,104,470.87 - Step 6: Final answer
x = 97,832,862.66
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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.