Home / 790,775,911.56-1,091,279,634.84-451,729,288.92

Finding the Fourth Proportional to 790,775,911.56, 1,091,279,634.84 and 451,729,288.92

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Solution

The fourth proportional to 790,775,911.56, 1,091,279,634.84 and 451,729,288.92 is: 623,391,489.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,775,911.56 : 1,091,279,634.84 = 451,729,288.92 : x
  2. Step 2: Convert to fraction form
    790,775,911.56/1,091,279,634.84 = 451,729,288.92/x
  3. Step 3: Cross multiply
    790,775,911.56x = 1,091,279,634.84 × 451,729,288.92
  4. Step 4: Simplify right side
    790,775,911.56x = 492,962,973,459,150,464
  5. Step 5: Solve for x
    x = 492,962,973,459,150,464/790,775,911.56
  6. Step 6: Final answer
    x = 623,391,489.62

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1.5x scale

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.