Finding the Fourth Proportional to 13,310,449.56, 18,368,432.64 and 7,198,878.06
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Solution
The fourth proportional to 13,310,449.56, 18,368,432.64 and 7,198,878.06 is: 9,934,458.35
Step by Step Solution
- Step 1: Write the proportion equation
13,310,449.56 : 18,368,432.64 = 7,198,878.06 : x - Step 2: Convert to fraction form
13,310,449.56/18,368,432.64 = 7,198,878.06/x - Step 3: Cross multiply
13,310,449.56x = 18,368,432.64 × 7,198,878.06 - Step 4: Simplify right side
13,310,449.56x = 132,232,106,728,683.88 - Step 5: Solve for x
x = 132,232,106,728,683.88/13,310,449.56 - Step 6: Final answer
x = 9,934,458.35
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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.