Home / 138,147,705.68-190,642,846.78-75,423,801.58

Finding the Fourth Proportional to 138,147,705.68, 190,642,846.78 and 75,423,801.58

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Solution

The fourth proportional to 138,147,705.68, 190,642,846.78 and 75,423,801.58 is: 104,084,307.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,147,705.68 : 190,642,846.78 = 75,423,801.58 : x
  2. Step 2: Convert to fraction form
    138,147,705.68/190,642,846.78 = 75,423,801.58/x
  3. Step 3: Cross multiply
    138,147,705.68x = 190,642,846.78 × 75,423,801.58
  4. Step 4: Simplify right side
    138,147,705.68x = 14,379,008,247,992,502
  5. Step 5: Solve for x
    x = 14,379,008,247,992,502/138,147,705.68
  6. Step 6: Final answer
    x = 104,084,307.28

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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.