Home / 128,769,463,883.52-193,183,003,931.73-39,239,464,266.68

Finding the Fourth Proportional to 128,769,463,883.52, 193,183,003,931.73 and 39,239,464,266.68

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Solution

The fourth proportional to 128,769,463,883.52, 193,183,003,931.73 and 39,239,464,266.68 is: 58,867,974,992.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,769,463,883.52 : 193,183,003,931.73 = 39,239,464,266.68 : x
  2. Step 2: Convert to fraction form
    128,769,463,883.52/193,183,003,931.73 = 39,239,464,266.68/x
  3. Step 3: Cross multiply
    128,769,463,883.52x = 193,183,003,931.73 × 39,239,464,266.68
  4. Step 4: Simplify right side
    128,769,463,883.52x = 7,580,397,579,709,601,284,096
  5. Step 5: Solve for x
    x = 7,580,397,579,709,601,284,096/128,769,463,883.52
  6. Step 6: Final answer
    x = 58,867,974,992.63

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1.5x scale

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.