Finding the Fourth Proportional to 8,470,471.98, 12,708,079.65 and 3,425,325.42
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Solution
The fourth proportional to 8,470,471.98, 12,708,079.65 and 3,425,325.42 is: 5,138,947.20
Step by Step Solution
- Step 1: Write the proportion equation
8,470,471.98 : 12,708,079.65 = 3,425,325.42 : x - Step 2: Convert to fraction form
8,470,471.98/12,708,079.65 = 3,425,325.42/x - Step 3: Cross multiply
8,470,471.98x = 12,708,079.65 × 3,425,325.42 - Step 4: Simplify right side
8,470,471.98x = 43,529,308,264,529.70 - Step 5: Solve for x
x = 43,529,308,264,529.70/8,470,471.98 - Step 6: Final answer
x = 5,138,947.20
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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.