Finding the Fourth Proportional to 10,690,515.36, 14,754,508.56 and 8,415,793.44
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Solution
The fourth proportional to 10,690,515.36, 14,754,508.56 and 8,415,793.44 is: 11,615,052.42
Step by Step Solution
- Step 1: Write the proportion equation
10,690,515.36 : 14,754,508.56 = 8,415,793.44 : x - Step 2: Convert to fraction form
10,690,515.36/14,754,508.56 = 8,415,793.44/x - Step 3: Cross multiply
10,690,515.36x = 14,754,508.56 × 8,415,793.44 - Step 4: Simplify right side
10,690,515.36x = 124,170,896,349,671.84 - Step 5: Solve for x
x = 124,170,896,349,671.84/10,690,515.36 - Step 6: Final answer
x = 11,615,052.42
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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.