Finding the Fourth Proportional to 18,450,134.40, 27,675,201.60 and 13,064,865.60
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Solution
The fourth proportional to 18,450,134.40, 27,675,201.60 and 13,064,865.60 is: 19,597,298.40
Step by Step Solution
- Step 1: Write the proportion equation
18,450,134.40 : 27,675,201.60 = 13,064,865.60 : x - Step 2: Convert to fraction form
18,450,134.40/27,675,201.60 = 13,064,865.60/x - Step 3: Cross multiply
18,450,134.40x = 27,675,201.60 × 13,064,865.60 - Step 4: Simplify right side
18,450,134.40x = 361,572,789,356,905 - Step 5: Solve for x
x = 361,572,789,356,905/18,450,134.40 - Step 6: Final answer
x = 19,597,298.40
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.