Finding the Fourth Proportional to 18,918,900.36, 26,108,081.48 and 10,217,072.12
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Solution
The fourth proportional to 18,918,900.36, 26,108,081.48 and 10,217,072.12 is: 14,099,558.98
Step by Step Solution
- Step 1: Write the proportion equation
18,918,900.36 : 26,108,081.48 = 10,217,072.12 : x - Step 2: Convert to fraction form
18,918,900.36/26,108,081.48 = 10,217,072.12/x - Step 3: Cross multiply
18,918,900.36x = 26,108,081.48 × 10,217,072.12 - Step 4: Simplify right side
18,918,900.36x = 266,748,151,395,996.31 - Step 5: Solve for x
x = 266,748,151,395,996.31/18,918,900.36 - Step 6: Final answer
x = 14,099,558.98
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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.