Finding the Fourth Proportional to 18,028,767.80, 24,879,786.16 and 9,768,827.90
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Solution
The fourth proportional to 18,028,767.80, 24,879,786.16 and 9,768,827.90 is: 13,481,029.42
Step by Step Solution
- Step 1: Write the proportion equation
18,028,767.80 : 24,879,786.16 = 9,768,827.90 : x - Step 2: Convert to fraction form
18,028,767.80/24,879,786.16 = 9,768,827.90/x - Step 3: Cross multiply
18,028,767.80x = 24,879,786.16 × 9,768,827.90 - Step 4: Simplify right side
18,028,767.80x = 243,046,349,185,841.88 - Step 5: Solve for x
x = 243,046,349,185,841.88/18,028,767.80 - Step 6: Final answer
x = 13,481,029.42
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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.