Finding the Fourth Proportional to 8,209,317.99, 12,315,983.76 and 5,785,199.67
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Solution
The fourth proportional to 8,209,317.99, 12,315,983.76 and 5,785,199.67 is: 8,679,213.70
Step by Step Solution
- Step 1: Write the proportion equation
8,209,317.99 : 12,315,983.76 = 5,785,199.67 : x - Step 2: Convert to fraction form
8,209,317.99/12,315,983.76 = 5,785,199.67/x - Step 3: Cross multiply
8,209,317.99x = 12,315,983.76 × 5,785,199.67 - Step 4: Simplify right side
8,209,317.99x = 71,250,425,184,077.36 - Step 5: Solve for x
x = 71,250,425,184,077.36/8,209,317.99 - Step 6: Final answer
x = 8,679,213.70
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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.