Finding the Fourth Proportional to 5,100,495.17, 7,038,148.20 and 2,894,655.54
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Solution
The fourth proportional to 5,100,495.17, 7,038,148.20 and 2,894,655.54 is: 3,994,320.95
Step by Step Solution
- Step 1: Write the proportion equation
5,100,495.17 : 7,038,148.20 = 2,894,655.54 : x - Step 2: Convert to fraction form
5,100,495.17/7,038,148.20 = 2,894,655.54/x - Step 3: Cross multiply
5,100,495.17x = 7,038,148.20 × 2,894,655.54 - Step 4: Simplify right side
5,100,495.17x = 20,373,014,678,471.03 - Step 5: Solve for x
x = 20,373,014,678,471.03/5,100,495.17 - Step 6: Final answer
x = 3,994,320.95
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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.