Finding the Fourth Proportional to 10,791,640.20, 16,182,794.70 and 5,398,206.60
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Solution
The fourth proportional to 10,791,640.20, 16,182,794.70 and 5,398,206.60 is: 8,094,976.07
Step by Step Solution
- Step 1: Write the proportion equation
10,791,640.20 : 16,182,794.70 = 5,398,206.60 : x - Step 2: Convert to fraction form
10,791,640.20/16,182,794.70 = 5,398,206.60/x - Step 3: Cross multiply
10,791,640.20x = 16,182,794.70 × 5,398,206.60 - Step 4: Simplify right side
10,791,640.20x = 87,358,069,155,985.02 - Step 5: Solve for x
x = 87,358,069,155,985.02/10,791,640.20 - Step 6: Final answer
x = 8,094,976.07
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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.