Finding the Fourth Proportional to 12,198,750.30, 18,298,256.62 and 3,679,160.58
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Solution
The fourth proportional to 12,198,750.30, 18,298,256.62 and 3,679,160.58 is: 5,518,780.43
Step by Step Solution
- Step 1: Write the proportion equation
12,198,750.30 : 18,298,256.62 = 3,679,160.58 : x - Step 2: Convert to fraction form
12,198,750.30/18,298,256.62 = 3,679,160.58/x - Step 3: Cross multiply
12,198,750.30x = 18,298,256.62 × 3,679,160.58 - Step 4: Simplify right side
12,198,750.30x = 67,322,224,439,028.05 - Step 5: Solve for x
x = 67,322,224,439,028.05/12,198,750.30 - Step 6: Final answer
x = 5,518,780.43
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.