Home / 111,556,018.68-153,899,552-69,667,361.68

Finding the Fourth Proportional to 111,556,018.68, 153,899,552 and 69,667,361.68

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Solution

The fourth proportional to 111,556,018.68, 153,899,552 and 69,667,361.68 is: 96,111,136.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,556,018.68 : 153,899,552 = 69,667,361.68 : x
  2. Step 2: Convert to fraction form
    111,556,018.68/153,899,552 = 69,667,361.68/x
  3. Step 3: Cross multiply
    111,556,018.68x = 153,899,552 × 69,667,361.68
  4. Step 4: Simplify right side
    111,556,018.68x = 10,721,775,751,573,968
  5. Step 5: Solve for x
    x = 10,721,775,751,573,968/111,556,018.68
  6. Step 6: Final answer
    x = 96,111,136.61

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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.