Finding the Fourth Proportional to 13,683,340.87, 18,883,178.36 and 7,572,337.99
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Solution
The fourth proportional to 13,683,340.87, 18,883,178.36 and 7,572,337.99 is: 10,449,919.37
Step by Step Solution
- Step 1: Write the proportion equation
13,683,340.87 : 18,883,178.36 = 7,572,337.99 : x - Step 2: Convert to fraction form
13,683,340.87/18,883,178.36 = 7,572,337.99/x - Step 3: Cross multiply
13,683,340.87x = 18,883,178.36 × 7,572,337.99 - Step 4: Simplify right side
13,683,340.87x = 142,989,808,810,700.53 - Step 5: Solve for x
x = 142,989,808,810,700.53/13,683,340.87 - Step 6: Final answer
x = 10,449,919.37
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.