Finding the Fourth Proportional to 20,832,236.35, 28,748,716.10 and 11,539,948.75
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Solution
The fourth proportional to 20,832,236.35, 28,748,716.10 and 11,539,948.75 is: 15,925,256.65
Step by Step Solution
- Step 1: Write the proportion equation
20,832,236.35 : 28,748,716.10 = 11,539,948.75 : x - Step 2: Convert to fraction form
20,832,236.35/28,748,716.10 = 11,539,948.75/x - Step 3: Cross multiply
20,832,236.35x = 28,748,716.10 × 11,539,948.75 - Step 4: Simplify right side
20,832,236.35x = 331,758,710,364,600.12 - Step 5: Solve for x
x = 331,758,710,364,600.12/20,832,236.35 - Step 6: Final answer
x = 15,925,256.65
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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.