Finding the Fourth Proportional to 122,528,979.36, 169,093,535.04 and 67,528,378.80
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Solution
The fourth proportional to 122,528,979.36, 169,093,535.04 and 67,528,378.80 is: 93,191,115.66
Step by Step Solution
- Step 1: Write the proportion equation
122,528,979.36 : 169,093,535.04 = 67,528,378.80 : x - Step 2: Convert to fraction form
122,528,979.36/169,093,535.04 = 67,528,378.80/x - Step 3: Cross multiply
122,528,979.36x = 169,093,535.04 × 67,528,378.80 - Step 4: Simplify right side
122,528,979.36x = 11,418,612,286,812,192 - Step 5: Solve for x
x = 11,418,612,286,812,192/122,528,979.36 - Step 6: Final answer
x = 93,191,115.66
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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.