Finding the Fourth Proportional to 205,126,785.80, 307,690,178.70 and 61,519,617.80
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Solution
The fourth proportional to 205,126,785.80, 307,690,178.70 and 61,519,617.80 is: 92,279,426.70
Step by Step Solution
- Step 1: Write the proportion equation
205,126,785.80 : 307,690,178.70 = 61,519,617.80 : x - Step 2: Convert to fraction form
205,126,785.80/307,690,178.70 = 61,519,617.80/x - Step 3: Cross multiply
205,126,785.80x = 307,690,178.70 × 61,519,617.80 - Step 4: Simplify right side
205,126,785.80x = 18,928,982,194,437,700 - Step 5: Solve for x
x = 18,928,982,194,437,700/205,126,785.80 - Step 6: Final answer
x = 92,279,426.70
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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.