Finding the Fourth Proportional to 6,107,207.20, 9,160,810.80 and 2,118,119.20
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Solution
The fourth proportional to 6,107,207.20, 9,160,810.80 and 2,118,119.20 is: 3,177,178.80
Step by Step Solution
- Step 1: Write the proportion equation
6,107,207.20 : 9,160,810.80 = 2,118,119.20 : x - Step 2: Convert to fraction form
6,107,207.20/9,160,810.80 = 2,118,119.20/x - Step 3: Cross multiply
6,107,207.20x = 9,160,810.80 × 2,118,119.20 - Step 4: Simplify right side
6,107,207.20x = 19,403,689,243,047.36 - Step 5: Solve for x
x = 19,403,689,243,047.36/6,107,207.20 - Step 6: Final answer
x = 3,177,178.80
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1.5x scale
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.