Finding the Fourth Proportional to 11,391,968.74, 15,719,226.37 and 6,919,197.90
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Solution
The fourth proportional to 11,391,968.74, 15,719,226.37 and 6,919,197.90 is: 9,547,466.34
Step by Step Solution
- Step 1: Write the proportion equation
11,391,968.74 : 15,719,226.37 = 6,919,197.90 : x - Step 2: Convert to fraction form
11,391,968.74/15,719,226.37 = 6,919,197.90/x - Step 3: Cross multiply
11,391,968.74x = 15,719,226.37 × 6,919,197.90 - Step 4: Simplify right side
11,391,968.74x = 108,764,438,051,604.02 - Step 5: Solve for x
x = 108,764,438,051,604.02/11,391,968.74 - Step 6: Final answer
x = 9,547,466.34
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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.