Finding the Fourth Proportional to 12,787,660.80, 19,149,998.40 and 6,048,201.60
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Solution
The fourth proportional to 12,787,660.80, 19,149,998.40 and 6,048,201.60 is: 9,057,407.20
Step by Step Solution
- Step 1: Write the proportion equation
12,787,660.80 : 19,149,998.40 = 6,048,201.60 : x - Step 2: Convert to fraction form
12,787,660.80/19,149,998.40 = 6,048,201.60/x - Step 3: Cross multiply
12,787,660.80x = 19,149,998.40 × 6,048,201.60 - Step 4: Simplify right side
12,787,660.80x = 115,823,050,962,877.42 - Step 5: Solve for x
x = 115,823,050,962,877.42/12,787,660.80 - Step 6: Final answer
x = 9,057,407.20
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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.