Home / 139,782,126.02-192,899,918.52-77,056,847.37

Finding the Fourth Proportional to 139,782,126.02, 192,899,918.52 and 77,056,847.37

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Solution

The fourth proportional to 139,782,126.02, 192,899,918.52 and 77,056,847.37 is: 106,338,771.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,782,126.02 : 192,899,918.52 = 77,056,847.37 : x
  2. Step 2: Convert to fraction form
    139,782,126.02/192,899,918.52 = 77,056,847.37/x
  3. Step 3: Cross multiply
    139,782,126.02x = 192,899,918.52 × 77,056,847.37
  4. Step 4: Simplify right side
    139,782,126.02x = 14,864,259,579,081,078
  5. Step 5: Solve for x
    x = 14,864,259,579,081,078/139,782,126.02
  6. Step 6: Final answer
    x = 106,338,771.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.