Finding the Fourth Proportional to 5,688,339.80, 8,532,509.70 and 5,315,091.80
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Solution
The fourth proportional to 5,688,339.80, 8,532,509.70 and 5,315,091.80 is: 7,972,637.70
Step by Step Solution
- Step 1: Write the proportion equation
5,688,339.80 : 8,532,509.70 = 5,315,091.80 : x - Step 2: Convert to fraction form
5,688,339.80/8,532,509.70 = 5,315,091.80/x - Step 3: Cross multiply
5,688,339.80x = 8,532,509.70 × 5,315,091.80 - Step 4: Simplify right side
5,688,339.80x = 45,351,072,339,890.45 - Step 5: Solve for x
x = 45,351,072,339,890.45/5,688,339.80 - Step 6: Final answer
x = 7,972,637.70
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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.