Finding the Fourth Proportional to 13,225,935.57, 18,250,783.44 and 7,423,596.30
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Solution
The fourth proportional to 13,225,935.57, 18,250,783.44 and 7,423,596.30 is: 10,243,997.32
Step by Step Solution
- Step 1: Write the proportion equation
13,225,935.57 : 18,250,783.44 = 7,423,596.30 : x - Step 2: Convert to fraction form
13,225,935.57/18,250,783.44 = 7,423,596.30/x - Step 3: Cross multiply
13,225,935.57x = 18,250,783.44 × 7,423,596.30 - Step 4: Simplify right side
13,225,935.57x = 135,486,448,457,887.23 - Step 5: Solve for x
x = 135,486,448,457,887.23/13,225,935.57 - Step 6: Final answer
x = 10,243,997.32
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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.