Finding the Fourth Proportional to 154,854,471.27, 213,704,809.45 and 84,286,673.37
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Solution
The fourth proportional to 154,854,471.27, 213,704,809.45 and 84,286,673.37 is: 116,318,678.58
Step by Step Solution
- Step 1: Write the proportion equation
154,854,471.27 : 213,704,809.45 = 84,286,673.37 : x - Step 2: Convert to fraction form
154,854,471.27/213,704,809.45 = 84,286,673.37/x - Step 3: Cross multiply
154,854,471.27x = 213,704,809.45 × 84,286,673.37 - Step 4: Simplify right side
154,854,471.27x = 18,012,467,470,641,714 - Step 5: Solve for x
x = 18,012,467,470,641,714/154,854,471.27 - Step 6: Final answer
x = 116,318,678.58
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.