Finding the Fourth Proportional to 13,286,157.68, 18,336,251.40 and 8,132,924.72
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Solution
The fourth proportional to 13,286,157.68, 18,336,251.40 and 8,132,924.72 is: 11,224,264.82
Step by Step Solution
- Step 1: Write the proportion equation
13,286,157.68 : 18,336,251.40 = 8,132,924.72 : x - Step 2: Convert to fraction form
13,286,157.68/18,336,251.40 = 8,132,924.72/x - Step 3: Cross multiply
13,286,157.68x = 18,336,251.40 × 8,132,924.72 - Step 4: Simplify right side
13,286,157.68x = 149,127,352,283,194.59 - Step 5: Solve for x
x = 149,127,352,283,194.59/13,286,157.68 - Step 6: Final answer
x = 11,224,264.82
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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.