Home / 814,624,576.80-1,221,936,865.20-201,208,802.55

Finding the Fourth Proportional to 814,624,576.80, 1,221,936,865.20 and 201,208,802.55

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Solution

The fourth proportional to 814,624,576.80, 1,221,936,865.20 and 201,208,802.55 is: 301,813,203.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,624,576.80 : 1,221,936,865.20 = 201,208,802.55 : x
  2. Step 2: Convert to fraction form
    814,624,576.80/1,221,936,865.20 = 201,208,802.55/x
  3. Step 3: Cross multiply
    814,624,576.80x = 1,221,936,865.20 × 201,208,802.55
  4. Step 4: Simplify right side
    814,624,576.80x = 245,864,453,438,592,800
  5. Step 5: Solve for x
    x = 245,864,453,438,592,800/814,624,576.80
  6. Step 6: Final answer
    x = 301,813,203.83

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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.