Finding the Fourth Proportional to 28,482,762.92, 39,358,351.79 and 20,734,353.14
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Solution
The fourth proportional to 28,482,762.92, 39,358,351.79 and 20,734,353.14 is: 28,651,362.48
Step by Step Solution
- Step 1: Write the proportion equation
28,482,762.92 : 39,358,351.79 = 20,734,353.14 : x - Step 2: Convert to fraction form
28,482,762.92/39,358,351.79 = 20,734,353.14/x - Step 3: Cross multiply
28,482,762.92x = 39,358,351.79 × 20,734,353.14 - Step 4: Simplify right side
28,482,762.92x = 816,069,964,721,747.62 - Step 5: Solve for x
x = 816,069,964,721,747.62/28,482,762.92 - Step 6: Final answer
x = 28,651,362.48
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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.