Home / 127,323,042.64-190,965,376.09-81,584,535.04

Finding the Fourth Proportional to 127,323,042.64, 190,965,376.09 and 81,584,535.04

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Solution

The fourth proportional to 127,323,042.64, 190,965,376.09 and 81,584,535.04 is: 122,364,507.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,323,042.64 : 190,965,376.09 = 81,584,535.04 : x
  2. Step 2: Convert to fraction form
    127,323,042.64/190,965,376.09 = 81,584,535.04/x
  3. Step 3: Cross multiply
    127,323,042.64x = 190,965,376.09 × 81,584,535.04
  4. Step 4: Simplify right side
    127,323,042.64x = 15,579,821,416,360,008
  5. Step 5: Solve for x
    x = 15,579,821,416,360,008/127,323,042.64
  6. Step 6: Final answer
    x = 122,364,507.58

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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.