Home / 107,313,976.20-161,024,108.40-61,291,185.60

Finding the Fourth Proportional to 107,313,976.20, 161,024,108.40 and 61,291,185.60

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Solution

The fourth proportional to 107,313,976.20, 161,024,108.40 and 61,291,185.60 is: 91,967,131.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,313,976.20 : 161,024,108.40 = 61,291,185.60 : x
  2. Step 2: Convert to fraction form
    107,313,976.20/161,024,108.40 = 61,291,185.60/x
  3. Step 3: Cross multiply
    107,313,976.20x = 161,024,108.40 × 61,291,185.60
  4. Step 4: Simplify right side
    107,313,976.20x = 9,869,358,514,018,920
  5. Step 5: Solve for x
    x = 9,869,358,514,018,920/107,313,976.20
  6. Step 6: Final answer
    x = 91,967,131.06

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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.