Finding the Fourth Proportional to 143,143,384.80, 214,463,134.80 and 122,987,992.80
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Solution
The fourth proportional to 143,143,384.80, 214,463,134.80 and 122,987,992.80 is: 184,265,521.70
Step by Step Solution
- Step 1: Write the proportion equation
143,143,384.80 : 214,463,134.80 = 122,987,992.80 : x - Step 2: Convert to fraction form
143,143,384.80/214,463,134.80 = 122,987,992.80/x - Step 3: Cross multiply
143,143,384.80x = 214,463,134.80 × 122,987,992.80 - Step 4: Simplify right side
143,143,384.80x = 26,376,390,478,647,832 - Step 5: Solve for x
x = 26,376,390,478,647,832/143,143,384.80 - Step 6: Final answer
x = 184,265,521.70
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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.