Finding the Fourth Proportional to 13,438,233.12, 20,157,423.68 and 3,340,854.12
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Solution
The fourth proportional to 13,438,233.12, 20,157,423.68 and 3,340,854.12 is: 5,011,299.58
Step by Step Solution
- Step 1: Write the proportion equation
13,438,233.12 : 20,157,423.68 = 3,340,854.12 : x - Step 2: Convert to fraction form
13,438,233.12/20,157,423.68 = 3,340,854.12/x - Step 3: Cross multiply
13,438,233.12x = 20,157,423.68 × 3,340,854.12 - Step 4: Simplify right side
13,438,233.12x = 67,343,011,949,913.56 - Step 5: Solve for x
x = 67,343,011,949,913.56/13,438,233.12 - Step 6: Final answer
x = 5,011,299.58
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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.