Finding the Fourth Proportional to 5,125,621.80, 7,688,432.70 and 4,130,293.80
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Solution
The fourth proportional to 5,125,621.80, 7,688,432.70 and 4,130,293.80 is: 6,195,440.70
Step by Step Solution
- Step 1: Write the proportion equation
5,125,621.80 : 7,688,432.70 = 4,130,293.80 : x - Step 2: Convert to fraction form
5,125,621.80/7,688,432.70 = 4,130,293.80/x - Step 3: Cross multiply
5,125,621.80x = 7,688,432.70 × 4,130,293.80 - Step 4: Simplify right side
5,125,621.80x = 31,755,485,912,527.26 - Step 5: Solve for x
x = 31,755,485,912,527.26/5,125,621.80 - Step 6: Final answer
x = 6,195,440.70
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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.