Home / 111,242,257.40-153,514,645.89-61,686,122.26

Finding the Fourth Proportional to 111,242,257.40, 153,514,645.89 and 61,686,122.26

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Solution

The fourth proportional to 111,242,257.40, 153,514,645.89 and 61,686,122.26 is: 85,127,032.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,242,257.40 : 153,514,645.89 = 61,686,122.26 : x
  2. Step 2: Convert to fraction form
    111,242,257.40/153,514,645.89 = 61,686,122.26/x
  3. Step 3: Cross multiply
    111,242,257.40x = 153,514,645.89 × 61,686,122.26
  4. Step 4: Simplify right side
    111,242,257.40x = 9,469,723,215,071,146
  5. Step 5: Solve for x
    x = 9,469,723,215,071,146/111,242,257.40
  6. Step 6: Final answer
    x = 85,127,032.09

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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.