Home / 279,268,967,128.42-418,903,455,571.12-67,033,099,626.66

Finding the Fourth Proportional to 279,268,967,128.42, 418,903,455,571.12 and 67,033,099,626.66

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Solution

The fourth proportional to 279,268,967,128.42, 418,903,455,571.12 and 67,033,099,626.66 is: 100,549,650,610.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,268,967,128.42 : 418,903,455,571.12 = 67,033,099,626.66 : x
  2. Step 2: Convert to fraction form
    279,268,967,128.42/418,903,455,571.12 = 67,033,099,626.66/x
  3. Step 3: Cross multiply
    279,268,967,128.42x = 418,903,455,571.12 × 67,033,099,626.66
  4. Step 4: Simplify right side
    279,268,967,128.42x = 28,080,397,071,251,027,263,488
  5. Step 5: Solve for x
    x = 28,080,397,071,251,027,263,488/279,268,967,128.42
  6. Step 6: Final answer
    x = 100,549,650,610.98

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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.