Finding the Fourth Proportional to 20,279,364.92, 27,985,523.45 and 11,111,810.84
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Solution
The fourth proportional to 20,279,364.92, 27,985,523.45 and 11,111,810.84 is: 15,334,298.88
Step by Step Solution
- Step 1: Write the proportion equation
20,279,364.92 : 27,985,523.45 = 11,111,810.84 : x - Step 2: Convert to fraction form
20,279,364.92/27,985,523.45 = 11,111,810.84/x - Step 3: Cross multiply
20,279,364.92x = 27,985,523.45 × 11,111,810.84 - Step 4: Simplify right side
20,279,364.92x = 310,969,842,834,784.19 - Step 5: Solve for x
x = 310,969,842,834,784.19/20,279,364.92 - Step 6: Final answer
x = 15,334,298.88
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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.