Finding the Fourth Proportional to 18,376,531.60, 27,565,557.44 and 5,422,682.40
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Solution
The fourth proportional to 18,376,531.60, 27,565,557.44 and 5,422,682.40 is: 8,134,247.88
Step by Step Solution
- Step 1: Write the proportion equation
18,376,531.60 : 27,565,557.44 = 5,422,682.40 : x - Step 2: Convert to fraction form
18,376,531.60/27,565,557.44 = 5,422,682.40/x - Step 3: Cross multiply
18,376,531.60x = 27,565,557.44 × 5,422,682.40 - Step 4: Simplify right side
18,376,531.60x = 149,479,263,176,077.06 - Step 5: Solve for x
x = 149,479,263,176,077.06/18,376,531.60 - Step 6: Final answer
x = 8,134,247.88
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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.