Finding the Fourth Proportional to 8,686,248.09, 11,987,036.51 and 4,818,769.31
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Solution
The fourth proportional to 8,686,248.09, 11,987,036.51 and 4,818,769.31 is: 6,649,909.49
Step by Step Solution
- Step 1: Write the proportion equation
8,686,248.09 : 11,987,036.51 = 4,818,769.31 : x - Step 2: Convert to fraction form
8,686,248.09/11,987,036.51 = 4,818,769.31/x - Step 3: Cross multiply
8,686,248.09x = 11,987,036.51 × 4,818,769.31 - Step 4: Simplify right side
8,686,248.09x = 57,762,763,568,208.48 - Step 5: Solve for x
x = 57,762,763,568,208.48/8,686,248.09 - Step 6: Final answer
x = 6,649,909.49
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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.