Home / 256,775,987,127.76-384,828,922,510.28-143,451,135,614.75

Finding the Fourth Proportional to 256,775,987,127.76, 384,828,922,510.28 and 143,451,135,614.75

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Solution

The fourth proportional to 256,775,987,127.76, 384,828,922,510.28 and 143,451,135,614.75 is: 214,989,518,953.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,775,987,127.76 : 384,828,922,510.28 = 143,451,135,614.75 : x
  2. Step 2: Convert to fraction form
    256,775,987,127.76/384,828,922,510.28 = 143,451,135,614.75/x
  3. Step 3: Cross multiply
    256,775,987,127.76x = 384,828,922,510.28 × 143,451,135,614.75
  4. Step 4: Simplify right side
    256,775,987,127.76x = 55,204,145,951,500,302,024,704
  5. Step 5: Solve for x
    x = 55,204,145,951,500,302,024,704/256,775,987,127.76
  6. Step 6: Final answer
    x = 214,989,518,953.86

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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.