Home / 7,164,930,439.56-9,887,633,966.04-3,949,769,851.56

Finding the Fourth Proportional to 7,164,930,439.56, 9,887,633,966.04 and 3,949,769,851.56

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Solution

The fourth proportional to 7,164,930,439.56, 9,887,633,966.04 and 3,949,769,851.56 is: 5,450,698,910.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,164,930,439.56 : 9,887,633,966.04 = 3,949,769,851.56 : x
  2. Step 2: Convert to fraction form
    7,164,930,439.56/9,887,633,966.04 = 3,949,769,851.56/x
  3. Step 3: Cross multiply
    7,164,930,439.56x = 9,887,633,966.04 × 3,949,769,851.56
  4. Step 4: Simplify right side
    7,164,930,439.56x = 39,053,878,542,325,424,128
  5. Step 5: Solve for x
    x = 39,053,878,542,325,424,128/7,164,930,439.56
  6. Step 6: Final answer
    x = 5,450,698,910.72

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Double scale
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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.