Finding the Fourth Proportional to 38,707,415.20, 58,068,121.20 and 19,489,808.80
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Solution
The fourth proportional to 38,707,415.20, 58,068,121.20 and 19,489,808.80 is: 29,238,237.01
Step by Step Solution
- Step 1: Write the proportion equation
38,707,415.20 : 58,068,121.20 = 19,489,808.80 : x - Step 2: Convert to fraction form
38,707,415.20/58,068,121.20 = 19,489,808.80/x - Step 3: Cross multiply
38,707,415.20x = 58,068,121.20 × 19,489,808.80 - Step 4: Simplify right side
38,707,415.20x = 1,131,736,579,563,226.75 - Step 5: Solve for x
x = 1,131,736,579,563,226.75/38,707,415.20 - Step 6: Final answer
x = 29,238,237.01
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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.