Finding the Fourth Proportional to 13,299,089.09, 19,919,765.24 and 8,165,937.65
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Solution
The fourth proportional to 13,299,089.09, 19,919,765.24 and 8,165,937.65 is: 12,231,180.63
Step by Step Solution
- Step 1: Write the proportion equation
13,299,089.09 : 19,919,765.24 = 8,165,937.65 : x - Step 2: Convert to fraction form
13,299,089.09/19,919,765.24 = 8,165,937.65/x - Step 3: Cross multiply
13,299,089.09x = 19,919,765.24 × 8,165,937.65 - Step 4: Simplify right side
13,299,089.09x = 162,663,560,911,647.59 - Step 5: Solve for x
x = 162,663,560,911,647.59/13,299,089.09 - Step 6: Final answer
x = 12,231,180.63
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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.