Finding the Fourth Proportional to 11,120,828.68, 15,342,182.76 and 6,766,424.20
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Solution
The fourth proportional to 11,120,828.68, 15,342,182.76 and 6,766,424.20 is: 9,334,890.38
Step by Step Solution
- Step 1: Write the proportion equation
11,120,828.68 : 15,342,182.76 = 6,766,424.20 : x - Step 2: Convert to fraction form
11,120,828.68/15,342,182.76 = 6,766,424.20/x - Step 3: Cross multiply
11,120,828.68x = 15,342,182.76 × 6,766,424.20 - Step 4: Simplify right side
11,120,828.68x = 103,811,716,708,086.80 - Step 5: Solve for x
x = 103,811,716,708,086.80/11,120,828.68 - Step 6: Final answer
x = 9,334,890.38
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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.