Finding the Fourth Proportional to 28,517,205.38, 39,353,764.17 and 15,464,460.99
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Solution
The fourth proportional to 28,517,205.38, 39,353,764.17 and 15,464,460.99 is: 21,340,967.42
Step by Step Solution
- Step 1: Write the proportion equation
28,517,205.38 : 39,353,764.17 = 15,464,460.99 : x - Step 2: Convert to fraction form
28,517,205.38/39,353,764.17 = 15,464,460.99/x - Step 3: Cross multiply
28,517,205.38x = 39,353,764.17 × 15,464,460.99 - Step 4: Simplify right side
28,517,205.38x = 608,584,750,800,828.12 - Step 5: Solve for x
x = 608,584,750,800,828.12/28,517,205.38 - Step 6: Final answer
x = 21,340,967.42
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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.