Finding the Fourth Proportional to 28,149,794.38, 42,231,058.54 and 15,195,666.99
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Solution
The fourth proportional to 28,149,794.38, 42,231,058.54 and 15,195,666.99 is: 22,796,937.47
Step by Step Solution
- Step 1: Write the proportion equation
28,149,794.38 : 42,231,058.54 = 15,195,666.99 : x - Step 2: Convert to fraction form
28,149,794.38/42,231,058.54 = 15,195,666.99/x - Step 3: Cross multiply
28,149,794.38x = 42,231,058.54 × 15,195,666.99 - Step 4: Simplify right side
28,149,794.38x = 641,729,102,209,035.62 - Step 5: Solve for x
x = 641,729,102,209,035.62/28,149,794.38 - Step 6: Final answer
x = 22,796,937.47
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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.