Finding the Fourth Proportional to 154,194,752.32, 212,795,433.12 and 92,303,118.88
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Solution
The fourth proportional to 154,194,752.32, 212,795,433.12 and 92,303,118.88 is: 127,382,299.75
Step by Step Solution
- Step 1: Write the proportion equation
154,194,752.32 : 212,795,433.12 = 92,303,118.88 : x - Step 2: Convert to fraction form
154,194,752.32/212,795,433.12 = 92,303,118.88/x - Step 3: Cross multiply
154,194,752.32x = 212,795,433.12 × 92,303,118.88 - Step 4: Simplify right side
154,194,752.32x = 19,641,682,160,396,448 - Step 5: Solve for x
x = 19,641,682,160,396,448/154,194,752.32 - Step 6: Final answer
x = 127,382,299.75
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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.