Finding the Fourth Proportional to 191,030,330.19, 286,253,213.84 and 128,550,261.31
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Solution
The fourth proportional to 191,030,330.19, 286,253,213.84 and 128,550,261.31 is: 192,628,706.68
Step by Step Solution
- Step 1: Write the proportion equation
191,030,330.19 : 286,253,213.84 = 128,550,261.31 : x - Step 2: Convert to fraction form
191,030,330.19/286,253,213.84 = 128,550,261.31/x - Step 3: Cross multiply
191,030,330.19x = 286,253,213.84 × 128,550,261.31 - Step 4: Simplify right side
191,030,330.19x = 36,797,925,440,280,680 - Step 5: Solve for x
x = 36,797,925,440,280,680/191,030,330.19 - Step 6: Final answer
x = 192,628,706.68
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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.