Finding the Fourth Proportional to 10,295,112.60, 14,201,352.68 and 6,420,907.71
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Solution
The fourth proportional to 10,295,112.60, 14,201,352.68 and 6,420,907.71 is: 8,857,171.21
Step by Step Solution
- Step 1: Write the proportion equation
10,295,112.60 : 14,201,352.68 = 6,420,907.71 : x - Step 2: Convert to fraction form
10,295,112.60/14,201,352.68 = 6,420,907.71/x - Step 3: Cross multiply
10,295,112.60x = 14,201,352.68 × 6,420,907.71 - Step 4: Simplify right side
10,295,112.60x = 91,185,574,883,336.62 - Step 5: Solve for x
x = 91,185,574,883,336.62/10,295,112.60 - Step 6: Final answer
x = 8,857,171.21
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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.