Finding the Fourth Proportional to 38,855,762.20, 58,206,879.60 and 19,700,266.60
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Solution
The fourth proportional to 38,855,762.20, 58,206,879.60 and 19,700,266.60 is: 29,511,479.92
Step by Step Solution
- Step 1: Write the proportion equation
38,855,762.20 : 58,206,879.60 = 19,700,266.60 : x - Step 2: Convert to fraction form
38,855,762.20/58,206,879.60 = 19,700,266.60/x - Step 3: Cross multiply
38,855,762.20x = 58,206,879.60 × 19,700,266.60 - Step 4: Simplify right side
38,855,762.20x = 1,146,691,046,074,101.50 - Step 5: Solve for x
x = 1,146,691,046,074,101.50/38,855,762.20 - Step 6: Final answer
x = 29,511,479.92
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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.