Finding the Fourth Proportional to 13,278,842.90, 19,886,332.83 and 7,581,799.70
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Solution
The fourth proportional to 13,278,842.90, 19,886,332.83 and 7,581,799.70 is: 11,354,467.66
Step by Step Solution
- Step 1: Write the proportion equation
13,278,842.90 : 19,886,332.83 = 7,581,799.70 : x - Step 2: Convert to fraction form
13,278,842.90/19,886,332.83 = 7,581,799.70/x - Step 3: Cross multiply
13,278,842.90x = 19,886,332.83 × 7,581,799.70 - Step 4: Simplify right side
13,278,842.90x = 150,774,192,284,594.16 - Step 5: Solve for x
x = 150,774,192,284,594.16/13,278,842.90 - Step 6: Final answer
x = 11,354,467.66
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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.