Finding the Fourth Proportional to 5,551,140.53, 7,656,347.15 and 4,778,087.09
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Solution
The fourth proportional to 5,551,140.53, 7,656,347.15 and 4,778,087.09 is: 6,590,122.03
Step by Step Solution
- Step 1: Write the proportion equation
5,551,140.53 : 7,656,347.15 = 4,778,087.09 : x - Step 2: Convert to fraction form
5,551,140.53/7,656,347.15 = 4,778,087.09/x - Step 3: Cross multiply
5,551,140.53x = 7,656,347.15 × 4,778,087.09 - Step 4: Simplify right side
5,551,140.53x = 36,582,693,447,636.77 - Step 5: Solve for x
x = 36,582,693,447,636.77/5,551,140.53 - Step 6: Final answer
x = 6,590,122.03
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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.