Finding the Fourth Proportional to 19,422,115.20, 29,120,731.20 and 8,067,081.60
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Solution
The fourth proportional to 19,422,115.20, 29,120,731.20 and 8,067,081.60 is: 12,095,454.71
Step by Step Solution
- Step 1: Write the proportion equation
19,422,115.20 : 29,120,731.20 = 8,067,081.60 : x - Step 2: Convert to fraction form
19,422,115.20/29,120,731.20 = 8,067,081.60/x - Step 3: Cross multiply
19,422,115.20x = 29,120,731.20 × 8,067,081.60 - Step 4: Simplify right side
19,422,115.20x = 234,919,314,842,065.91 - Step 5: Solve for x
x = 234,919,314,842,065.91/19,422,115.20 - Step 6: Final answer
x = 12,095,454.71
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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.