Finding the Fourth Proportional to 7,452,037.80, 10,284,901.20 and 4,189,121.28
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Solution
The fourth proportional to 7,452,037.80, 10,284,901.20 and 4,189,121.28 is: 5,781,599.56
Step by Step Solution
- Step 1: Write the proportion equation
7,452,037.80 : 10,284,901.20 = 4,189,121.28 : x - Step 2: Convert to fraction form
7,452,037.80/10,284,901.20 = 4,189,121.28/x - Step 3: Cross multiply
7,452,037.80x = 10,284,901.20 × 4,189,121.28 - Step 4: Simplify right side
7,452,037.80x = 43,084,698,479,617.53 - Step 5: Solve for x
x = 43,084,698,479,617.53/7,452,037.80 - Step 6: Final answer
x = 5,781,599.56
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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.