Finding the Fourth Proportional to 5,638,273.16, 7,779,691.44 and 3,431,658.06
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Solution
The fourth proportional to 5,638,273.16, 7,779,691.44 and 3,431,658.06 is: 4,735,003.09
Step by Step Solution
- Step 1: Write the proportion equation
5,638,273.16 : 7,779,691.44 = 3,431,658.06 : x - Step 2: Convert to fraction form
5,638,273.16/7,779,691.44 = 3,431,658.06/x - Step 3: Cross multiply
5,638,273.16x = 7,779,691.44 × 3,431,658.06 - Step 4: Simplify right side
5,638,273.16x = 26,697,240,834,389.01 - Step 5: Solve for x
x = 26,697,240,834,389.01/5,638,273.16 - Step 6: Final answer
x = 4,735,003.09
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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.