Finding the Fourth Proportional to 7,124,119.20, 10,687,215.60 and 2,330,647.20
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Solution
The fourth proportional to 7,124,119.20, 10,687,215.60 and 2,330,647.20 is: 3,496,309.99
Step by Step Solution
- Step 1: Write the proportion equation
7,124,119.20 : 10,687,215.60 = 2,330,647.20 : x - Step 2: Convert to fraction form
7,124,119.20/10,687,215.60 = 2,330,647.20/x - Step 3: Cross multiply
7,124,119.20x = 10,687,215.60 × 2,330,647.20 - Step 4: Simplify right side
7,124,119.20x = 24,908,129,113,936.32 - Step 5: Solve for x
x = 24,908,129,113,936.32/7,124,119.20 - Step 6: Final answer
x = 3,496,309.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.