Finding the Fourth Proportional to 38,239,170.12, 52,769,390.36 and 20,835,658.35
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Solution
The fourth proportional to 38,239,170.12, 52,769,390.36 and 20,835,658.35 is: 28,752,846.50
Step by Step Solution
- Step 1: Write the proportion equation
38,239,170.12 : 52,769,390.36 = 20,835,658.35 : x - Step 2: Convert to fraction form
38,239,170.12/52,769,390.36 = 20,835,658.35/x - Step 3: Cross multiply
38,239,170.12x = 52,769,390.36 × 20,835,658.35 - Step 4: Simplify right side
38,239,170.12x = 1,099,484,988,774,565.25 - Step 5: Solve for x
x = 1,099,484,988,774,565.25/38,239,170.12 - Step 6: Final answer
x = 28,752,846.50
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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.