Finding the Fourth Proportional to 23,990,407.20, 33,107,551.44 and 13,125,142.56
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Solution
The fourth proportional to 23,990,407.20, 33,107,551.44 and 13,125,142.56 is: 18,113,128.67
Step by Step Solution
- Step 1: Write the proportion equation
23,990,407.20 : 33,107,551.44 = 13,125,142.56 : x - Step 2: Convert to fraction form
23,990,407.20/33,107,551.44 = 13,125,142.56/x - Step 3: Cross multiply
23,990,407.20x = 33,107,551.44 × 13,125,142.56 - Step 4: Simplify right side
23,990,407.20x = 434,541,332,462,533.31 - Step 5: Solve for x
x = 434,541,332,462,533.31/23,990,407.20 - Step 6: Final answer
x = 18,113,128.67
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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.