Finding the Fourth Proportional to 11,197,685.04, 15,449,109.80 and 9,129,144.40
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Solution
The fourth proportional to 11,197,685.04, 15,449,109.80 and 9,129,144.40 is: 12,595,206.39
Step by Step Solution
- Step 1: Write the proportion equation
11,197,685.04 : 15,449,109.80 = 9,129,144.40 : x - Step 2: Convert to fraction form
11,197,685.04/15,449,109.80 = 9,129,144.40/x - Step 3: Cross multiply
11,197,685.04x = 15,449,109.80 × 9,129,144.40 - Step 4: Simplify right side
11,197,685.04x = 141,037,154,215,655.12 - Step 5: Solve for x
x = 141,037,154,215,655.12/11,197,685.04 - Step 6: Final answer
x = 12,595,206.39
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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.