Finding the Fourth Proportional to 15,414,851.68, 21,272,494.74 and 8,445,793.67
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Solution
The fourth proportional to 15,414,851.68, 21,272,494.74 and 8,445,793.67 is: 11,655,194.95
Step by Step Solution
- Step 1: Write the proportion equation
15,414,851.68 : 21,272,494.74 = 8,445,793.67 : x - Step 2: Convert to fraction form
15,414,851.68/21,272,494.74 = 8,445,793.67/x - Step 3: Cross multiply
15,414,851.68x = 21,272,494.74 × 8,445,793.67 - Step 4: Simplify right side
15,414,851.68x = 179,663,101,420,200.28 - Step 5: Solve for x
x = 179,663,101,420,200.28/15,414,851.68 - Step 6: Final answer
x = 11,655,194.95
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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.