Home / 40,742,136.72-61,112,317.32-19,164,778.38

Finding the Fourth Proportional to 40,742,136.72, 61,112,317.32 and 19,164,778.38

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Solution

The fourth proportional to 40,742,136.72, 61,112,317.32 and 19,164,778.38 is: 28,746,749.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,742,136.72 : 61,112,317.32 = 19,164,778.38 : x
  2. Step 2: Convert to fraction form
    40,742,136.72/61,112,317.32 = 19,164,778.38/x
  3. Step 3: Cross multiply
    40,742,136.72x = 61,112,317.32 × 19,164,778.38
  4. Step 4: Simplify right side
    40,742,136.72x = 1,171,204,017,726,035.50
  5. Step 5: Solve for x
    x = 1,171,204,017,726,035.50/40,742,136.72
  6. Step 6: Final answer
    x = 28,746,749.97

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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.