Finding the Fourth Proportional to 18,232,476.74, 25,168,565.13 and 11,360,354.12
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Solution
The fourth proportional to 18,232,476.74, 25,168,565.13 and 11,360,354.12 is: 15,682,115.86
Step by Step Solution
- Step 1: Write the proportion equation
18,232,476.74 : 25,168,565.13 = 11,360,354.12 : x - Step 2: Convert to fraction form
18,232,476.74/25,168,565.13 = 11,360,354.12/x - Step 3: Cross multiply
18,232,476.74x = 25,168,565.13 × 11,360,354.12 - Step 4: Simplify right side
18,232,476.74x = 285,923,812,569,083.81 - Step 5: Solve for x
x = 285,923,812,569,083.81/18,232,476.74 - Step 6: Final answer
x = 15,682,115.86
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.