Finding the Fourth Proportional to 11,197,691.64, 15,449,118.99 and 9,129,151.02
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Solution
The fourth proportional to 11,197,691.64, 15,449,118.99 and 9,129,151.02 is: 12,595,215.60
Step by Step Solution
- Step 1: Write the proportion equation
11,197,691.64 : 15,449,118.99 = 9,129,151.02 : x - Step 2: Convert to fraction form
11,197,691.64/15,449,118.99 = 9,129,151.02/x - Step 3: Cross multiply
11,197,691.64x = 15,449,118.99 × 9,129,151.02 - Step 4: Simplify right side
11,197,691.64x = 141,037,340,385,659.88 - Step 5: Solve for x
x = 141,037,340,385,659.88/11,197,691.64 - Step 6: Final answer
x = 12,595,215.60
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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.