Finding the Fourth Proportional to 15,658,594.52, 21,608,816.21 and 8,690,324.09
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Solution
The fourth proportional to 15,658,594.52, 21,608,816.21 and 8,690,324.09 is: 11,992,622.70
Step by Step Solution
- Step 1: Write the proportion equation
15,658,594.52 : 21,608,816.21 = 8,690,324.09 : x - Step 2: Convert to fraction form
15,658,594.52/21,608,816.21 = 8,690,324.09/x - Step 3: Cross multiply
15,658,594.52x = 21,608,816.21 × 8,690,324.09 - Step 4: Simplify right side
15,658,594.52x = 187,787,616,066,145.50 - Step 5: Solve for x
x = 187,787,616,066,145.50/15,658,594.52 - Step 6: Final answer
x = 11,992,622.70
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1.5x scale
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.