Home / 139,413,272.40-209,119,908.60-125,542,662.30

Finding the Fourth Proportional to 139,413,272.40, 209,119,908.60 and 125,542,662.30

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Solution

The fourth proportional to 139,413,272.40, 209,119,908.60 and 125,542,662.30 is: 188,313,993.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,413,272.40 : 209,119,908.60 = 125,542,662.30 : x
  2. Step 2: Convert to fraction form
    139,413,272.40/209,119,908.60 = 125,542,662.30/x
  3. Step 3: Cross multiply
    139,413,272.40x = 209,119,908.60 × 125,542,662.30
  4. Step 4: Simplify right side
    139,413,272.40x = 26,253,470,065,576,664
  5. Step 5: Solve for x
    x = 26,253,470,065,576,664/139,413,272.40
  6. Step 6: Final answer
    x = 188,313,993.45

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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.