Home / 19,118,749.89-28,683,395.78-7,612,297.56

Finding the Fourth Proportional to 19,118,749.89, 28,683,395.78 and 7,612,297.56

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Solution

The fourth proportional to 19,118,749.89, 28,683,395.78 and 7,612,297.56 is: 11,420,545.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,118,749.89 : 28,683,395.78 = 7,612,297.56 : x
  2. Step 2: Convert to fraction form
    19,118,749.89/28,683,395.78 = 7,612,297.56/x
  3. Step 3: Cross multiply
    19,118,749.89x = 28,683,395.78 × 7,612,297.56
  4. Step 4: Simplify right side
    19,118,749.89x = 218,346,543,670,546.78
  5. Step 5: Solve for x
    x = 218,346,543,670,546.78/19,118,749.89
  6. Step 6: Final answer
    x = 11,420,545.01

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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.