Finding the Fourth Proportional to 11,276,565.12, 15,561,776.16 and 6,119,971.20
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Solution
The fourth proportional to 11,276,565.12, 15,561,776.16 and 6,119,971.20 is: 8,445,623.37
Step by Step Solution
- Step 1: Write the proportion equation
11,276,565.12 : 15,561,776.16 = 6,119,971.20 : x - Step 2: Convert to fraction form
11,276,565.12/15,561,776.16 = 6,119,971.20/x - Step 3: Cross multiply
11,276,565.12x = 15,561,776.16 × 6,119,971.20 - Step 4: Simplify right side
11,276,565.12x = 95,237,621,920,046.59 - Step 5: Solve for x
x = 95,237,621,920,046.59/11,276,565.12 - Step 6: Final answer
x = 8,445,623.37
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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.