Finding the Fourth Proportional to 29,720,875.80, 41,019,291.75 and 18,125,165.80
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Solution
The fourth proportional to 29,720,875.80, 41,019,291.75 and 18,125,165.80 is: 25,015,462.83
Step by Step Solution
- Step 1: Write the proportion equation
29,720,875.80 : 41,019,291.75 = 18,125,165.80 : x - Step 2: Convert to fraction form
29,720,875.80/41,019,291.75 = 18,125,165.80/x - Step 3: Cross multiply
29,720,875.80x = 41,019,291.75 × 18,125,165.80 - Step 4: Simplify right side
29,720,875.80x = 743,481,463,967,322.12 - Step 5: Solve for x
x = 743,481,463,967,322.12/29,720,875.80 - Step 6: Final answer
x = 25,015,462.83
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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.