Finding the Fourth Proportional to 5,419,389.36, 7,478,069.94 and 2,971,356.23
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Solution
The fourth proportional to 5,419,389.36, 7,478,069.94 and 2,971,356.23 is: 4,100,094.71
Step by Step Solution
- Step 1: Write the proportion equation
5,419,389.36 : 7,478,069.94 = 2,971,356.23 : x - Step 2: Convert to fraction form
5,419,389.36/7,478,069.94 = 2,971,356.23/x - Step 3: Cross multiply
5,419,389.36x = 7,478,069.94 × 2,971,356.23 - Step 4: Simplify right side
5,419,389.36x = 22,220,009,667,204.38 - Step 5: Solve for x
x = 22,220,009,667,204.38/5,419,389.36 - Step 6: Final answer
x = 4,100,094.71
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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.