Home / 18,887,081,491.60-28,330,622,237.40-7,839,911,136.40

Finding the Fourth Proportional to 18,887,081,491.60, 28,330,622,237.40 and 7,839,911,136.40

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Solution

The fourth proportional to 18,887,081,491.60, 28,330,622,237.40 and 7,839,911,136.40 is: 11,759,866,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887,081,491.60 : 28,330,622,237.40 = 7,839,911,136.40 : x
  2. Step 2: Convert to fraction form
    18,887,081,491.60/28,330,622,237.40 = 7,839,911,136.40/x
  3. Step 3: Cross multiply
    18,887,081,491.60x = 28,330,622,237.40 × 7,839,911,136.40
  4. Step 4: Simplify right side
    18,887,081,491.60x = 222,109,560,780,133,761,024
  5. Step 5: Solve for x
    x = 222,109,560,780,133,761,024/18,887,081,491.60
  6. Step 6: Final answer
    x = 11,759,866,704.60

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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.