Finding the Fourth Proportional to 20,169,628.08, 30,254,414.16 and 8,047,604.70
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Solution
The fourth proportional to 20,169,628.08, 30,254,414.16 and 8,047,604.70 is: 12,071,395.89
Step by Step Solution
- Step 1: Write the proportion equation
20,169,628.08 : 30,254,414.16 = 8,047,604.70 : x - Step 2: Convert to fraction form
20,169,628.08/30,254,414.16 = 8,047,604.70/x - Step 3: Cross multiply
20,169,628.08x = 30,254,414.16 × 8,047,604.70 - Step 4: Simplify right side
20,169,628.08x = 243,475,565,589,762.56 - Step 5: Solve for x
x = 243,475,565,589,762.56/20,169,628.08 - Step 6: Final answer
x = 12,071,395.89
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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.