Finding the Fourth Proportional to 23,120,779.20, 31,906,664.19 and 13,828,349.11
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Solution
The fourth proportional to 23,120,779.20, 31,906,664.19 and 13,828,349.11 is: 19,083,115.12
Step by Step Solution
- Step 1: Write the proportion equation
23,120,779.20 : 31,906,664.19 = 13,828,349.11 : x - Step 2: Convert to fraction form
23,120,779.20/31,906,664.19 = 13,828,349.11/x - Step 3: Cross multiply
23,120,779.20x = 31,906,664.19 × 13,828,349.11 - Step 4: Simplify right side
23,120,779.20x = 441,216,491,126,180.31 - Step 5: Solve for x
x = 441,216,491,126,180.31/23,120,779.20 - Step 6: Final answer
x = 19,083,115.12
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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.