Home / 153,308,997.56-211,565,340.36-83,694,378.44

Finding the Fourth Proportional to 153,308,997.56, 211,565,340.36 and 83,694,378.44

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Solution

The fourth proportional to 153,308,997.56, 211,565,340.36 and 83,694,378.44 is: 115,497,654.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,308,997.56 : 211,565,340.36 = 83,694,378.44 : x
  2. Step 2: Convert to fraction form
    153,308,997.56/211,565,340.36 = 83,694,378.44/x
  3. Step 3: Cross multiply
    153,308,997.56x = 211,565,340.36 × 83,694,378.44
  4. Step 4: Simplify right side
    153,308,997.56x = 17,706,829,661,406,160
  5. Step 5: Solve for x
    x = 17,706,829,661,406,160/153,308,997.56
  6. Step 6: Final answer
    x = 115,497,654.69

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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.