Home / 138,055,675.88-190,515,337.06-76,178,622.44

Finding the Fourth Proportional to 138,055,675.88, 190,515,337.06 and 76,178,622.44

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Solution

The fourth proportional to 138,055,675.88, 190,515,337.06 and 76,178,622.44 is: 105,125,673.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,055,675.88 : 190,515,337.06 = 76,178,622.44 : x
  2. Step 2: Convert to fraction form
    138,055,675.88/190,515,337.06 = 76,178,622.44/x
  3. Step 3: Cross multiply
    138,055,675.88x = 190,515,337.06 × 76,178,622.44
  4. Step 4: Simplify right side
    138,055,675.88x = 14,513,195,930,923,080
  5. Step 5: Solve for x
    x = 14,513,195,930,923,080/138,055,675.88
  6. Step 6: Final answer
    x = 105,125,673.67

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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.