Finding the Fourth Proportional to 20,678,288.96, 31,023,763.68 and 10,588,047.68
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Solution
The fourth proportional to 20,678,288.96, 31,023,763.68 and 10,588,047.68 is: 15,885,312.84
Step by Step Solution
- Step 1: Write the proportion equation
20,678,288.96 : 31,023,763.68 = 10,588,047.68 : x - Step 2: Convert to fraction form
20,678,288.96/31,023,763.68 = 10,588,047.68/x - Step 3: Cross multiply
20,678,288.96x = 31,023,763.68 × 10,588,047.68 - Step 4: Simplify right side
20,678,288.96x = 328,481,089,056,892.25 - Step 5: Solve for x
x = 328,481,089,056,892.25/20,678,288.96 - Step 6: Final answer
x = 15,885,312.84
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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.