Finding the Fourth Proportional to 138,744,467.68, 208,048,599.87 and 68,633,690.75
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Solution
The fourth proportional to 138,744,467.68, 208,048,599.87 and 68,633,690.75 is: 102,916,847.80
Step by Step Solution
- Step 1: Write the proportion equation
138,744,467.68 : 208,048,599.87 = 68,633,690.75 : x - Step 2: Convert to fraction form
138,744,467.68/208,048,599.87 = 68,633,690.75/x - Step 3: Cross multiply
138,744,467.68x = 208,048,599.87 × 68,633,690.75 - Step 4: Simplify right side
138,744,467.68x = 14,279,143,263,579,412 - Step 5: Solve for x
x = 14,279,143,263,579,412/138,744,467.68 - Step 6: Final answer
x = 102,916,847.80
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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.