Home / 90,798,679.60-136,198,019.40-54,448,115.20

Finding the Fourth Proportional to 90,798,679.60, 136,198,019.40 and 54,448,115.20

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Solution

The fourth proportional to 90,798,679.60, 136,198,019.40 and 54,448,115.20 is: 81,672,172.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,798,679.60 : 136,198,019.40 = 54,448,115.20 : x
  2. Step 2: Convert to fraction form
    90,798,679.60/136,198,019.40 = 54,448,115.20/x
  3. Step 3: Cross multiply
    90,798,679.60x = 136,198,019.40 × 54,448,115.20
  4. Step 4: Simplify right side
    90,798,679.60x = 7,415,725,450,303,036
  5. Step 5: Solve for x
    x = 7,415,725,450,303,036/90,798,679.60
  6. Step 6: Final answer
    x = 81,672,172.80

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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.