Finding the Fourth Proportional to 206,747,238.05, 285,313,101.95 and 113,931,067.49
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Solution
The fourth proportional to 206,747,238.05, 285,313,101.95 and 113,931,067.49 is: 157,225,927.56
Step by Step Solution
- Step 1: Write the proportion equation
206,747,238.05 : 285,313,101.95 = 113,931,067.49 : x - Step 2: Convert to fraction form
206,747,238.05/285,313,101.95 = 113,931,067.49/x - Step 3: Cross multiply
206,747,238.05x = 285,313,101.95 × 113,931,067.49 - Step 4: Simplify right side
206,747,238.05x = 32,506,026,272,904,960 - Step 5: Solve for x
x = 32,506,026,272,904,960/206,747,238.05 - Step 6: Final answer
x = 157,225,927.56
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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.