Finding the Fourth Proportional to 20,415,117.30, 30,587,246.55 and 17,226,471.30
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Solution
The fourth proportional to 20,415,117.30, 30,587,246.55 and 17,226,471.30 is: 25,809,811.28
Step by Step Solution
- Step 1: Write the proportion equation
20,415,117.30 : 30,587,246.55 = 17,226,471.30 : x - Step 2: Convert to fraction form
20,415,117.30/30,587,246.55 = 17,226,471.30/x - Step 3: Cross multiply
20,415,117.30x = 30,587,246.55 × 17,226,471.30 - Step 4: Simplify right side
20,415,117.30x = 526,910,324,839,599.06 - Step 5: Solve for x
x = 526,910,324,839,599.06/20,415,117.30 - Step 6: Final answer
x = 25,809,811.28
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.