Home / 138,124,104.72-190,565,996.44-98,437,886.88

Finding the Fourth Proportional to 138,124,104.72, 190,565,996.44 and 98,437,886.88

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Solution

The fourth proportional to 138,124,104.72, 190,565,996.44 and 98,437,886.88 is: 135,812,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,124,104.72 : 190,565,996.44 = 98,437,886.88 : x
  2. Step 2: Convert to fraction form
    138,124,104.72/190,565,996.44 = 98,437,886.88/x
  3. Step 3: Cross multiply
    138,124,104.72x = 190,565,996.44 × 98,437,886.88
  4. Step 4: Simplify right side
    138,124,104.72x = 18,758,914,000,735,200
  5. Step 5: Solve for x
    x = 18,758,914,000,735,200/138,124,104.72
  6. Step 6: Final answer
    x = 135,812,022.37

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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.