Finding the Fourth Proportional to 15,106,720.06, 20,847,276.93 and 8,231,202.19
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Solution
The fourth proportional to 15,106,720.06, 20,847,276.93 and 8,231,202.19 is: 11,359,060.79
Step by Step Solution
- Step 1: Write the proportion equation
15,106,720.06 : 20,847,276.93 = 8,231,202.19 : x - Step 2: Convert to fraction form
15,106,720.06/20,847,276.93 = 8,231,202.19/x - Step 3: Cross multiply
15,106,720.06x = 20,847,276.93 × 8,231,202.19 - Step 4: Simplify right side
15,106,720.06x = 171,598,151,521,752.47 - Step 5: Solve for x
x = 171,598,151,521,752.47/15,106,720.06 - Step 6: Final answer
x = 11,359,060.79
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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.