Finding the Fourth Proportional to 378,358,655.44, 522,134,713.56 and 204,518,399.44
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Solution
The fourth proportional to 378,358,655.44, 522,134,713.56 and 204,518,399.44 is: 282,235,266.39
Step by Step Solution
- Step 1: Write the proportion equation
378,358,655.44 : 522,134,713.56 = 204,518,399.44 : x - Step 2: Convert to fraction form
378,358,655.44/522,134,713.56 = 204,518,399.44/x - Step 3: Cross multiply
378,358,655.44x = 522,134,713.56 × 204,518,399.44 - Step 4: Simplify right side
378,358,655.44x = 106,786,155,909,354,064 - Step 5: Solve for x
x = 106,786,155,909,354,064/378,358,655.44 - Step 6: Final answer
x = 282,235,266.39
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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.