Finding the Fourth Proportional to 13,259,101.36, 18,297,376.10 and 7,457,887.02
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Solution
The fourth proportional to 13,259,101.36, 18,297,376.10 and 7,457,887.02 is: 10,291,780.72
Step by Step Solution
- Step 1: Write the proportion equation
13,259,101.36 : 18,297,376.10 = 7,457,887.02 : x - Step 2: Convert to fraction form
13,259,101.36/18,297,376.10 = 7,457,887.02/x - Step 3: Cross multiply
13,259,101.36x = 18,297,376.10 × 7,457,887.02 - Step 4: Simplify right side
13,259,101.36x = 136,459,763,716,248.22 - Step 5: Solve for x
x = 136,459,763,716,248.22/13,259,101.36 - Step 6: Final answer
x = 10,291,780.72
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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.