Finding the Fourth Proportional to 5,122,742.58, 7,070,259.42 and 3,057,864.66
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Solution
The fourth proportional to 5,122,742.58, 7,070,259.42 and 3,057,864.66 is: 4,220,375.33
Step by Step Solution
- Step 1: Write the proportion equation
5,122,742.58 : 7,070,259.42 = 3,057,864.66 : x - Step 2: Convert to fraction form
5,122,742.58/7,070,259.42 = 3,057,864.66/x - Step 3: Cross multiply
5,122,742.58x = 7,070,259.42 × 3,057,864.66 - Step 4: Simplify right side
5,122,742.58x = 21,619,896,417,450.10 - Step 5: Solve for x
x = 21,619,896,417,450.10/5,122,742.58 - Step 6: Final answer
x = 4,220,375.33
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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.