Home / 77,922,469,898.40-116,883,704,847.60-66,764,759,815.20

Finding the Fourth Proportional to 77,922,469,898.40, 116,883,704,847.60 and 66,764,759,815.20

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Solution

The fourth proportional to 77,922,469,898.40, 116,883,704,847.60 and 66,764,759,815.20 is: 100,147,139,722.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,922,469,898.40 : 116,883,704,847.60 = 66,764,759,815.20 : x
  2. Step 2: Convert to fraction form
    77,922,469,898.40/116,883,704,847.60 = 66,764,759,815.20/x
  3. Step 3: Cross multiply
    77,922,469,898.40x = 116,883,704,847.60 × 66,764,759,815.20
  4. Step 4: Simplify right side
    77,922,469,898.40x = 7,803,712,480,460,742,328,320
  5. Step 5: Solve for x
    x = 7,803,712,480,460,742,328,320/77,922,469,898.40
  6. Step 6: Final answer
    x = 100,147,139,722.80

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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.