Finding the Fourth Proportional to 3,924,639.15, 5,415,875.73 and 2,182,299.99
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Solution
The fourth proportional to 3,924,639.15, 5,415,875.73 and 2,182,299.99 is: 3,011,503.76
Step by Step Solution
- Step 1: Write the proportion equation
3,924,639.15 : 5,415,875.73 = 2,182,299.99 : x - Step 2: Convert to fraction form
3,924,639.15/5,415,875.73 = 2,182,299.99/x - Step 3: Cross multiply
3,924,639.15x = 5,415,875.73 × 2,182,299.99 - Step 4: Simplify right side
3,924,639.15x = 11,819,065,551,420.24 - Step 5: Solve for x
x = 11,819,065,551,420.24/3,924,639.15 - Step 6: Final answer
x = 3,011,503.76
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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.