Home / 407,259,786.36-562,299,683.40-381,240,435

Finding the Fourth Proportional to 407,259,786.36, 562,299,683.40 and 381,240,435

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Solution

The fourth proportional to 407,259,786.36, 562,299,683.40 and 381,240,435 is: 526,375,014.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,259,786.36 : 562,299,683.40 = 381,240,435 : x
  2. Step 2: Convert to fraction form
    407,259,786.36/562,299,683.40 = 381,240,435/x
  3. Step 3: Cross multiply
    407,259,786.36x = 562,299,683.40 × 381,240,435
  4. Step 4: Simplify right side
    407,259,786.36x = 214,371,375,899,778,272
  5. Step 5: Solve for x
    x = 214,371,375,899,778,272/407,259,786.36
  6. Step 6: Final answer
    x = 526,375,014.38

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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.