Home / 412,322,664.70-617,655,905.40-190,683,337.62

Finding the Fourth Proportional to 412,322,664.70, 617,655,905.40 and 190,683,337.62

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Solution

The fourth proportional to 412,322,664.70, 617,655,905.40 and 190,683,337.62 is: 285,642,045.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,322,664.70 : 617,655,905.40 = 190,683,337.62 : x
  2. Step 2: Convert to fraction form
    412,322,664.70/617,655,905.40 = 190,683,337.62/x
  3. Step 3: Cross multiply
    412,322,664.70x = 617,655,905.40 × 190,683,337.62
  4. Step 4: Simplify right side
    412,322,664.70x = 117,776,689,542,374,976
  5. Step 5: Solve for x
    x = 117,776,689,542,374,976/412,322,664.70
  6. Step 6: Final answer
    x = 285,642,045.96

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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.