Finding the Fourth Proportional to 15,911,043.99, 21,956,657.90 and 9,726,448.56
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Solution
The fourth proportional to 15,911,043.99, 21,956,657.90 and 9,726,448.56 is: 13,422,142.74
Step by Step Solution
- Step 1: Write the proportion equation
15,911,043.99 : 21,956,657.90 = 9,726,448.56 : x - Step 2: Convert to fraction form
15,911,043.99/21,956,657.90 = 9,726,448.56/x - Step 3: Cross multiply
15,911,043.99x = 21,956,657.90 × 9,726,448.56 - Step 4: Simplify right side
15,911,043.99x = 213,560,303,565,235.38 - Step 5: Solve for x
x = 213,560,303,565,235.38/15,911,043.99 - Step 6: Final answer
x = 13,422,142.74
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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.