Finding the Fourth Proportional to 15,719,780.48, 21,693,074.84 and 8,844,246.14
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Solution
The fourth proportional to 15,719,780.48, 21,693,074.84 and 8,844,246.14 is: 12,204,934.65
Step by Step Solution
- Step 1: Write the proportion equation
15,719,780.48 : 21,693,074.84 = 8,844,246.14 : x - Step 2: Convert to fraction form
15,719,780.48/21,693,074.84 = 8,844,246.14/x - Step 3: Cross multiply
15,719,780.48x = 21,693,074.84 × 8,844,246.14 - Step 4: Simplify right side
15,719,780.48x = 191,858,893,420,904 - Step 5: Solve for x
x = 191,858,893,420,904/15,719,780.48 - Step 6: Final answer
x = 12,204,934.65
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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.