Finding the Fourth Proportional to 20,070,789.12, 30,165,903.36 and 9,440,686.08
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Solution
The fourth proportional to 20,070,789.12, 30,165,903.36 and 9,440,686.08 is: 14,189,119.43
Step by Step Solution
- Step 1: Write the proportion equation
20,070,789.12 : 30,165,903.36 = 9,440,686.08 : x - Step 2: Convert to fraction form
20,070,789.12/30,165,903.36 = 9,440,686.08/x - Step 3: Cross multiply
20,070,789.12x = 30,165,903.36 × 9,440,686.08 - Step 4: Simplify right side
20,070,789.12x = 284,786,823,941,377.25 - Step 5: Solve for x
x = 284,786,823,941,377.25/20,070,789.12 - Step 6: Final answer
x = 14,189,119.43
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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.