Finding the Fourth Proportional to 7,101,412.80, 10,652,119.20 and 5,920,432.80
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Solution
The fourth proportional to 7,101,412.80, 10,652,119.20 and 5,920,432.80 is: 8,880,649.20
Step by Step Solution
- Step 1: Write the proportion equation
7,101,412.80 : 10,652,119.20 = 5,920,432.80 : x - Step 2: Convert to fraction form
7,101,412.80/10,652,119.20 = 5,920,432.80/x - Step 3: Cross multiply
7,101,412.80x = 10,652,119.20 × 5,920,432.80 - Step 4: Simplify right side
7,101,412.80x = 63,065,155,901,189.75 - Step 5: Solve for x
x = 63,065,155,901,189.75/7,101,412.80 - Step 6: Final answer
x = 8,880,649.20
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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.