Home / 1,219,591,430.21-1,682,887,378.50-683,619,397.45

Finding the Fourth Proportional to 1,219,591,430.21, 1,682,887,378.50 and 683,619,397.45

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Solution

The fourth proportional to 1,219,591,430.21, 1,682,887,378.50 and 683,619,397.45 is: 943,311,364.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,591,430.21 : 1,682,887,378.50 = 683,619,397.45 : x
  2. Step 2: Convert to fraction form
    1,219,591,430.21/1,682,887,378.50 = 683,619,397.45/x
  3. Step 3: Cross multiply
    1,219,591,430.21x = 1,682,887,378.50 × 683,619,397.45
  4. Step 4: Simplify right side
    1,219,591,430.21x = 1,150,454,455,662,172,800
  5. Step 5: Solve for x
    x = 1,150,454,455,662,172,800/1,219,591,430.21
  6. Step 6: Final answer
    x = 943,311,364.09

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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.