Finding the Fourth Proportional to 5,715,720.11, 7,884,105.87 and 3,390,966.75
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Solution
The fourth proportional to 5,715,720.11, 7,884,105.87 and 3,390,966.75 is: 4,677,405.54
Step by Step Solution
- Step 1: Write the proportion equation
5,715,720.11 : 7,884,105.87 = 3,390,966.75 : x - Step 2: Convert to fraction form
5,715,720.11/7,884,105.87 = 3,390,966.75/x - Step 3: Cross multiply
5,715,720.11x = 7,884,105.87 × 3,390,966.75 - Step 4: Simplify right side
5,715,720.11x = 26,734,740,900,931.35 - Step 5: Solve for x
x = 26,734,740,900,931.35/5,715,720.11 - Step 6: Final answer
x = 4,677,405.54
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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.