Home / 70,380,439.41-105,570,447.91-17,858,009.20

Finding the Fourth Proportional to 70,380,439.41, 105,570,447.91 and 17,858,009.20

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Solution

The fourth proportional to 70,380,439.41, 105,570,447.91 and 17,858,009.20 is: 26,786,960.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,380,439.41 : 105,570,447.91 = 17,858,009.20 : x
  2. Step 2: Convert to fraction form
    70,380,439.41/105,570,447.91 = 17,858,009.20/x
  3. Step 3: Cross multiply
    70,380,439.41x = 105,570,447.91 × 17,858,009.20
  4. Step 4: Simplify right side
    70,380,439.41x = 1,885,278,030,024,900.75
  5. Step 5: Solve for x
    x = 1,885,278,030,024,900.75/70,380,439.41
  6. Step 6: Final answer
    x = 26,786,960.21

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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.