Finding the Fourth Proportional to 11,160,112.68, 15,400,430.64 and 6,198,875.64
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Solution
The fourth proportional to 11,160,112.68, 15,400,430.64 and 6,198,875.64 is: 8,554,156.85
Step by Step Solution
- Step 1: Write the proportion equation
11,160,112.68 : 15,400,430.64 = 6,198,875.64 : x - Step 2: Convert to fraction form
11,160,112.68/15,400,430.64 = 6,198,875.64/x - Step 3: Cross multiply
11,160,112.68x = 15,400,430.64 × 6,198,875.64 - Step 4: Simplify right side
11,160,112.68x = 95,465,354,339,805.61 - Step 5: Solve for x
x = 95,465,354,339,805.61/11,160,112.68 - Step 6: Final answer
x = 8,554,156.85
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1.5x scale
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.