Finding the Fourth Proportional to 15,053,728.74, 20,774,571.35 and 8,527,356.24
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Solution
The fourth proportional to 15,053,728.74, 20,774,571.35 and 8,527,356.24 is: 11,767,992.75
Step by Step Solution
- Step 1: Write the proportion equation
15,053,728.74 : 20,774,571.35 = 8,527,356.24 : x - Step 2: Convert to fraction form
15,053,728.74/20,774,571.35 = 8,527,356.24/x - Step 3: Cross multiply
15,053,728.74x = 20,774,571.35 × 8,527,356.24 - Step 4: Simplify right side
15,053,728.74x = 177,152,170,634,747.75 - Step 5: Solve for x
x = 177,152,170,634,747.75/15,053,728.74 - Step 6: Final answer
x = 11,767,992.75
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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.