Finding the Fourth Proportional to 136,195,246.80, 204,292,870.20 and 128,232,622.80
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Solution
The fourth proportional to 136,195,246.80, 204,292,870.20 and 128,232,622.80 is: 192,348,934.20
Step by Step Solution
- Step 1: Write the proportion equation
136,195,246.80 : 204,292,870.20 = 128,232,622.80 : x - Step 2: Convert to fraction form
136,195,246.80/204,292,870.20 = 128,232,622.80/x - Step 3: Cross multiply
136,195,246.80x = 204,292,870.20 × 128,232,622.80 - Step 4: Simplify right side
136,195,246.80x = 26,197,010,565,085,960 - Step 5: Solve for x
x = 26,197,010,565,085,960/136,195,246.80 - Step 6: Final answer
x = 192,348,934.20
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.