Finding the Fourth Proportional to 13,372,998.07, 18,455,266.49 and 7,492,682.98
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Solution
The fourth proportional to 13,372,998.07, 18,455,266.49 and 7,492,682.98 is: 10,340,198.98
Step by Step Solution
- Step 1: Write the proportion equation
13,372,998.07 : 18,455,266.49 = 7,492,682.98 : x - Step 2: Convert to fraction form
13,372,998.07/18,455,266.49 = 7,492,682.98/x - Step 3: Cross multiply
13,372,998.07x = 18,455,266.49 × 7,492,682.98 - Step 4: Simplify right side
13,372,998.07x = 138,279,461,037,385.75 - Step 5: Solve for x
x = 138,279,461,037,385.75/13,372,998.07 - Step 6: Final answer
x = 10,340,198.98
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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.