Home / 1,391,018,584.32-1,919,651,667.84-764,509,219.20

Finding the Fourth Proportional to 1,391,018,584.32, 1,919,651,667.84 and 764,509,219.20

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Solution

The fourth proportional to 1,391,018,584.32, 1,919,651,667.84 and 764,509,219.20 is: 1,055,048,016.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,391,018,584.32 : 1,919,651,667.84 = 764,509,219.20 : x
  2. Step 2: Convert to fraction form
    1,391,018,584.32/1,919,651,667.84 = 764,509,219.20/x
  3. Step 3: Cross multiply
    1,391,018,584.32x = 1,919,651,667.84 × 764,509,219.20
  4. Step 4: Simplify right side
    1,391,018,584.32x = 1,467,591,397,716,336,128
  5. Step 5: Solve for x
    x = 1,467,591,397,716,336,128/1,391,018,584.32
  6. Step 6: Final answer
    x = 1,055,048,016.08

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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.