Finding the Fourth Proportional to 21,735,371.85, 29,982,323.41 and 13,572,438.09
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Solution
The fourth proportional to 21,735,371.85, 29,982,323.41 and 13,572,438.09 is: 18,722,165.47
Step by Step Solution
- Step 1: Write the proportion equation
21,735,371.85 : 29,982,323.41 = 13,572,438.09 : x - Step 2: Convert to fraction form
21,735,371.85/29,982,323.41 = 13,572,438.09/x - Step 3: Cross multiply
21,735,371.85x = 29,982,323.41 × 13,572,438.09 - Step 4: Simplify right side
21,735,371.85x = 406,933,228,276,582.69 - Step 5: Solve for x
x = 406,933,228,276,582.69/21,735,371.85 - Step 6: Final answer
x = 18,722,165.47
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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.