Home / 787,667,046.90-1,181,500,570.35-742,467,989.85

Finding the Fourth Proportional to 787,667,046.90, 1,181,500,570.35 and 742,467,989.85

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Solution

The fourth proportional to 787,667,046.90, 1,181,500,570.35 and 742,467,989.85 is: 1,113,701,984.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    787,667,046.90 : 1,181,500,570.35 = 742,467,989.85 : x
  2. Step 2: Convert to fraction form
    787,667,046.90/1,181,500,570.35 = 742,467,989.85/x
  3. Step 3: Cross multiply
    787,667,046.90x = 1,181,500,570.35 × 742,467,989.85
  4. Step 4: Simplify right side
    787,667,046.90x = 877,226,353,474,392,960
  5. Step 5: Solve for x
    x = 877,226,353,474,392,960/787,667,046.90
  6. Step 6: Final answer
    x = 1,113,701,984.78

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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.