Finding the Fourth Proportional to 20,879,595.98, 31,309,268.04 and 12,246,515.36
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Solution
The fourth proportional to 20,879,595.98, 31,309,268.04 and 12,246,515.36 is: 18,363,833.88
Step by Step Solution
- Step 1: Write the proportion equation
20,879,595.98 : 31,309,268.04 = 12,246,515.36 : x - Step 2: Convert to fraction form
20,879,595.98/31,309,268.04 = 12,246,515.36/x - Step 3: Cross multiply
20,879,595.98x = 31,309,268.04 × 12,246,515.36 - Step 4: Simplify right side
20,879,595.98x = 383,429,431,962,217.06 - Step 5: Solve for x
x = 383,429,431,962,217.06/20,879,595.98 - Step 6: Final answer
x = 18,363,833.88
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.