Home / 20,804,533.35-31,206,800.03-12,742,376.55

Finding the Fourth Proportional to 20,804,533.35, 31,206,800.03 and 12,742,376.55

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Solution

The fourth proportional to 20,804,533.35, 31,206,800.03 and 12,742,376.55 is: 19,113,564.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,804,533.35 : 31,206,800.03 = 12,742,376.55 : x
  2. Step 2: Convert to fraction form
    20,804,533.35/31,206,800.03 = 12,742,376.55/x
  3. Step 3: Cross multiply
    20,804,533.35x = 31,206,800.03 × 12,742,376.55
  4. Step 4: Simplify right side
    20,804,533.35x = 397,648,796,839,099.44
  5. Step 5: Solve for x
    x = 397,648,796,839,099.44/20,804,533.35
  6. Step 6: Final answer
    x = 19,113,564.83

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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.