Finding the Fourth Proportional to 7,416,228.80, 11,124,343.20 and 6,896,597.60
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Solution
The fourth proportional to 7,416,228.80, 11,124,343.20 and 6,896,597.60 is: 10,344,896.40
Step by Step Solution
- Step 1: Write the proportion equation
7,416,228.80 : 11,124,343.20 = 6,896,597.60 : x - Step 2: Convert to fraction form
7,416,228.80/11,124,343.20 = 6,896,597.60/x - Step 3: Cross multiply
7,416,228.80x = 11,124,343.20 × 6,896,597.60 - Step 4: Simplify right side
7,416,228.80x = 76,720,118,614,696.31 - Step 5: Solve for x
x = 76,720,118,614,696.31/7,416,228.80 - Step 6: Final answer
x = 10,344,896.40
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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.