Finding the Fourth Proportional to 369,193,701.60, 509,483,180.16 and 201,934,768.32
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Solution
The fourth proportional to 369,193,701.60, 509,483,180.16 and 201,934,768.32 is: 278,667,722.40
Step by Step Solution
- Step 1: Write the proportion equation
369,193,701.60 : 509,483,180.16 = 201,934,768.32 : x - Step 2: Convert to fraction form
369,193,701.60/509,483,180.16 = 201,934,768.32/x - Step 3: Cross multiply
369,193,701.60x = 509,483,180.16 × 201,934,768.32 - Step 4: Simplify right side
369,193,701.60x = 102,882,367,948,546,416 - Step 5: Solve for x
x = 102,882,367,948,546,416/369,193,701.60 - Step 6: Final answer
x = 278,667,722.40
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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.