Finding the Fourth Proportional to 194,147,587.80, 291,221,381.70 and 143,129,251.80
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Solution
The fourth proportional to 194,147,587.80, 291,221,381.70 and 143,129,251.80 is: 214,693,877.70
Step by Step Solution
- Step 1: Write the proportion equation
194,147,587.80 : 291,221,381.70 = 143,129,251.80 : x - Step 2: Convert to fraction form
194,147,587.80/291,221,381.70 = 143,129,251.80/x - Step 3: Cross multiply
194,147,587.80x = 291,221,381.70 × 143,129,251.80 - Step 4: Simplify right side
194,147,587.80x = 41,682,298,470,883,216 - Step 5: Solve for x
x = 41,682,298,470,883,216/194,147,587.80 - Step 6: Final answer
x = 214,693,877.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.