Finding the Fourth Proportional to 5,637,728.18, 7,780,064.93 and 3,059,408.94
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Solution
The fourth proportional to 5,637,728.18, 7,780,064.93 and 3,059,408.94 is: 4,221,984.36
Step by Step Solution
- Step 1: Write the proportion equation
5,637,728.18 : 7,780,064.93 = 3,059,408.94 : x - Step 2: Convert to fraction form
5,637,728.18/7,780,064.93 = 3,059,408.94/x - Step 3: Cross multiply
5,637,728.18x = 7,780,064.93 × 3,059,408.94 - Step 4: Simplify right side
5,637,728.18x = 23,802,400,185,325.43 - Step 5: Solve for x
x = 23,802,400,185,325.43/5,637,728.18 - Step 6: Final answer
x = 4,221,984.36
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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.