Home / 40,421,107.70-60,640,518.90-19,960,629.20

Finding the Fourth Proportional to 40,421,107.70, 60,640,518.90 and 19,960,629.20

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Solution

The fourth proportional to 40,421,107.70, 60,640,518.90 and 19,960,629.20 is: 29,945,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,421,107.70 : 60,640,518.90 = 19,960,629.20 : x
  2. Step 2: Convert to fraction form
    40,421,107.70/60,640,518.90 = 19,960,629.20/x
  3. Step 3: Cross multiply
    40,421,107.70x = 60,640,518.90 × 19,960,629.20
  4. Step 4: Simplify right side
    40,421,107.70x = 1,210,422,912,258,491.75
  5. Step 5: Solve for x
    x = 1,210,422,912,258,491.75/40,421,107.70
  6. Step 6: Final answer
    x = 29,945,317.71

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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.