Home / 138,147,705.30-190,642,846.26-75,423,801.21

Finding the Fourth Proportional to 138,147,705.30, 190,642,846.26 and 75,423,801.21

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Solution

The fourth proportional to 138,147,705.30, 190,642,846.26 and 75,423,801.21 is: 104,084,306.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,147,705.30 : 190,642,846.26 = 75,423,801.21 : x
  2. Step 2: Convert to fraction form
    138,147,705.30/190,642,846.26 = 75,423,801.21/x
  3. Step 3: Cross multiply
    138,147,705.30x = 190,642,846.26 × 75,423,801.21
  4. Step 4: Simplify right side
    138,147,705.30x = 14,379,008,138,422,830
  5. Step 5: Solve for x
    x = 14,379,008,138,422,830/138,147,705.30
  6. Step 6: Final answer
    x = 104,084,306.77

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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.