Finding the Fourth Proportional to 217,774,742.87, 300,525,360.84 and 118,656,304.65
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Solution
The fourth proportional to 217,774,742.87, 300,525,360.84 and 118,656,304.65 is: 163,743,638.50
Step by Step Solution
- Step 1: Write the proportion equation
217,774,742.87 : 300,525,360.84 = 118,656,304.65 : x - Step 2: Convert to fraction form
217,774,742.87/300,525,360.84 = 118,656,304.65/x - Step 3: Cross multiply
217,774,742.87x = 300,525,360.84 × 118,656,304.65 - Step 4: Simplify right side
217,774,742.87x = 35,659,228,770,882,220 - Step 5: Solve for x
x = 35,659,228,770,882,220/217,774,742.87 - Step 6: Final answer
x = 163,743,638.50
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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.