Home / 18,742,022.60-28,113,033.90-5,278,850.60

Finding the Fourth Proportional to 18,742,022.60, 28,113,033.90 and 5,278,850.60

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Solution

The fourth proportional to 18,742,022.60, 28,113,033.90 and 5,278,850.60 is: 7,918,275.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,742,022.60 : 28,113,033.90 = 5,278,850.60 : x
  2. Step 2: Convert to fraction form
    18,742,022.60/28,113,033.90 = 5,278,850.60/x
  3. Step 3: Cross multiply
    18,742,022.60x = 28,113,033.90 × 5,278,850.60
  4. Step 4: Simplify right side
    18,742,022.60x = 148,404,505,870,835.31
  5. Step 5: Solve for x
    x = 148,404,505,870,835.31/18,742,022.60
  6. Step 6: Final answer
    x = 7,918,275.90

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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.