Home / 485,004,800.70-727,507,201.05-139,969,683.90

Finding the Fourth Proportional to 485,004,800.70, 727,507,201.05 and 139,969,683.90

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Solution

The fourth proportional to 485,004,800.70, 727,507,201.05 and 139,969,683.90 is: 209,954,525.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,004,800.70 : 727,507,201.05 = 139,969,683.90 : x
  2. Step 2: Convert to fraction form
    485,004,800.70/727,507,201.05 = 139,969,683.90/x
  3. Step 3: Cross multiply
    485,004,800.70x = 727,507,201.05 × 139,969,683.90
  4. Step 4: Simplify right side
    485,004,800.70x = 101,828,952,965,942,240
  5. Step 5: Solve for x
    x = 101,828,952,965,942,240/485,004,800.70
  6. Step 6: Final answer
    x = 209,954,525.85

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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.