Finding the Fourth Proportional to 15,172,334.92, 20,937,155.70 and 8,647,376.68
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Solution
The fourth proportional to 15,172,334.92, 20,937,155.70 and 8,647,376.68 is: 11,932,999.96
Step by Step Solution
- Step 1: Write the proportion equation
15,172,334.92 : 20,937,155.70 = 8,647,376.68 : x - Step 2: Convert to fraction form
15,172,334.92/20,937,155.70 = 8,647,376.68/x - Step 3: Cross multiply
15,172,334.92x = 20,937,155.70 × 8,647,376.68 - Step 4: Simplify right side
15,172,334.92x = 181,051,471,945,709.06 - Step 5: Solve for x
x = 181,051,471,945,709.06/15,172,334.92 - Step 6: Final answer
x = 11,932,999.96
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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.