Home / 126,978,987.50-190,500,478.43-36,102,576.50

Finding the Fourth Proportional to 126,978,987.50, 190,500,478.43 and 36,102,576.50

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Solution

The fourth proportional to 126,978,987.50, 190,500,478.43 and 36,102,576.50 is: 54,162,962.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,978,987.50 : 190,500,478.43 = 36,102,576.50 : x
  2. Step 2: Convert to fraction form
    126,978,987.50/190,500,478.43 = 36,102,576.50/x
  3. Step 3: Cross multiply
    126,978,987.50x = 190,500,478.43 × 36,102,576.50
  4. Step 4: Simplify right side
    126,978,987.50x = 6,877,558,094,672,660
  5. Step 5: Solve for x
    x = 6,877,558,094,672,660/126,978,987.50
  6. Step 6: Final answer
    x = 54,162,962.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.