Finding the Fourth Proportional to 208,873,698.12, 313,310,204.55 and 55,519,756.38
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Solution
The fourth proportional to 208,873,698.12, 313,310,204.55 and 55,519,756.38 is: 83,279,543.50
Step by Step Solution
- Step 1: Write the proportion equation
208,873,698.12 : 313,310,204.55 = 55,519,756.38 : x - Step 2: Convert to fraction form
208,873,698.12/313,310,204.55 = 55,519,756.38/x - Step 3: Cross multiply
208,873,698.12x = 313,310,204.55 × 55,519,756.38 - Step 4: Simplify right side
208,873,698.12x = 17,394,906,227,983,970 - Step 5: Solve for x
x = 17,394,906,227,983,970/208,873,698.12 - Step 6: Final answer
x = 83,279,543.50
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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.