Home / 127,323,045.90-190,965,380.96-81,584,538.30

Finding the Fourth Proportional to 127,323,045.90, 190,965,380.96 and 81,584,538.30

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Solution

The fourth proportional to 127,323,045.90, 190,965,380.96 and 81,584,538.30 is: 122,364,512.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,323,045.90 : 190,965,380.96 = 81,584,538.30 : x
  2. Step 2: Convert to fraction form
    127,323,045.90/190,965,380.96 = 81,584,538.30/x
  3. Step 3: Cross multiply
    127,323,045.90x = 190,965,380.96 × 81,584,538.30
  4. Step 4: Simplify right side
    127,323,045.90x = 15,579,822,435,542,462
  5. Step 5: Solve for x
    x = 15,579,822,435,542,462/127,323,045.90
  6. Step 6: Final answer
    x = 122,364,512.46

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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.