Finding the Fourth Proportional to 20,649,682.25, 28,497,257.28 and 11,357,643.44
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Solution
The fourth proportional to 20,649,682.25, 28,497,257.28 and 11,357,643.44 is: 15,673,930.63
Step by Step Solution
- Step 1: Write the proportion equation
20,649,682.25 : 28,497,257.28 = 11,357,643.44 : x - Step 2: Convert to fraction form
20,649,682.25/28,497,257.28 = 11,357,643.44/x - Step 3: Cross multiply
20,649,682.25x = 28,497,257.28 × 11,357,643.44 - Step 4: Simplify right side
20,649,682.25x = 323,661,687,204,184.25 - Step 5: Solve for x
x = 323,661,687,204,184.25/20,649,682.25 - Step 6: Final answer
x = 15,673,930.63
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.