Home / 309,364,819.43-428,047,658.32-269,754,946.63

Finding the Fourth Proportional to 309,364,819.43, 428,047,658.32 and 269,754,946.63

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Solution

The fourth proportional to 309,364,819.43, 428,047,658.32 and 269,754,946.63 is: 373,242,094.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,364,819.43 : 428,047,658.32 = 269,754,946.63 : x
  2. Step 2: Convert to fraction form
    309,364,819.43/428,047,658.32 = 269,754,946.63/x
  3. Step 3: Cross multiply
    309,364,819.43x = 428,047,658.32 × 269,754,946.63
  4. Step 4: Simplify right side
    309,364,819.43x = 115,467,973,223,463,568
  5. Step 5: Solve for x
    x = 115,467,973,223,463,568/309,364,819.43
  6. Step 6: Final answer
    x = 373,242,094.67

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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.