Finding the Fourth Proportional to 6,447,947.09, 9,671,918.83 and 4,420,042.96
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Solution
The fourth proportional to 6,447,947.09, 9,671,918.83 and 4,420,042.96 is: 6,630,063.20
Step by Step Solution
- Step 1: Write the proportion equation
6,447,947.09 : 9,671,918.83 = 4,420,042.96 : x - Step 2: Convert to fraction form
6,447,947.09/9,671,918.83 = 4,420,042.96/x - Step 3: Cross multiply
6,447,947.09x = 9,671,918.83 × 4,420,042.96 - Step 4: Simplify right side
6,447,947.09x = 42,750,296,702,366.98 - Step 5: Solve for x
x = 42,750,296,702,366.98/6,447,947.09 - Step 6: Final answer
x = 6,630,063.20
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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.