Finding the Fourth Proportional to 19,720,245.12, 29,714,972.87 and 16,204,762.91
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Solution
The fourth proportional to 19,720,245.12, 29,714,972.87 and 16,204,762.91 is: 24,417,753.79
Step by Step Solution
- Step 1: Write the proportion equation
19,720,245.12 : 29,714,972.87 = 16,204,762.91 : x - Step 2: Convert to fraction form
19,720,245.12/29,714,972.87 = 16,204,762.91/x - Step 3: Cross multiply
19,720,245.12x = 29,714,972.87 × 16,204,762.91 - Step 4: Simplify right side
19,720,245.12x = 481,524,090,005,833.50 - Step 5: Solve for x
x = 481,524,090,005,833.50/19,720,245.12 - Step 6: Final answer
x = 24,417,753.79
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.