Home / 151,640,994,009.11-209,271,149,809.62-83,975,584,227.20

Finding the Fourth Proportional to 151,640,994,009.11, 209,271,149,809.62 and 83,975,584,227.20

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Solution

The fourth proportional to 151,640,994,009.11, 209,271,149,809.62 and 83,975,584,227.20 is: 115,889,949,033.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,640,994,009.11 : 209,271,149,809.62 = 83,975,584,227.20 : x
  2. Step 2: Convert to fraction form
    151,640,994,009.11/209,271,149,809.62 = 83,975,584,227.20/x
  3. Step 3: Cross multiply
    151,640,994,009.11x = 209,271,149,809.62 × 83,975,584,227.20
  4. Step 4: Simplify right side
    151,640,994,009.11x = 17,573,667,067,159,688,249,344
  5. Step 5: Solve for x
    x = 17,573,667,067,159,688,249,344/151,640,994,009.11
  6. Step 6: Final answer
    x = 115,889,949,033.86

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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.