Finding the Fourth Proportional to 206,878,728.97, 285,765,164.28 and 153,341,921.19
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Solution
The fourth proportional to 206,878,728.97, 285,765,164.28 and 153,341,921.19 is: 211,813,846.28
Step by Step Solution
- Step 1: Write the proportion equation
206,878,728.97 : 285,765,164.28 = 153,341,921.19 : x - Step 2: Convert to fraction form
206,878,728.97/285,765,164.28 = 153,341,921.19/x - Step 3: Cross multiply
206,878,728.97x = 285,765,164.28 × 153,341,921.19 - Step 4: Simplify right side
206,878,728.97x = 43,819,779,297,675,624 - Step 5: Solve for x
x = 43,819,779,297,675,624/206,878,728.97 - Step 6: Final answer
x = 211,813,846.28
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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.