Finding the Fourth Proportional to 7,909,847.04, 10,915,660.80 and 4,288,183.68
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Solution
The fourth proportional to 7,909,847.04, 10,915,660.80 and 4,288,183.68 is: 5,917,732.45
Step by Step Solution
- Step 1: Write the proportion equation
7,909,847.04 : 10,915,660.80 = 4,288,183.68 : x - Step 2: Convert to fraction form
7,909,847.04/10,915,660.80 = 4,288,183.68/x - Step 3: Cross multiply
7,909,847.04x = 10,915,660.80 × 4,288,183.68 - Step 4: Simplify right side
7,909,847.04x = 46,808,358,498,975.74 - Step 5: Solve for x
x = 46,808,358,498,975.74/7,909,847.04 - Step 6: Final answer
x = 5,917,732.45
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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.