Home / 90,763,836.60-136,128,040.20-30,179,562.60

Finding the Fourth Proportional to 90,763,836.60, 136,128,040.20 and 30,179,562.60

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Solution

The fourth proportional to 90,763,836.60, 136,128,040.20 and 30,179,562.60 is: 45,263,453.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,763,836.60 : 136,128,040.20 = 30,179,562.60 : x
  2. Step 2: Convert to fraction form
    90,763,836.60/136,128,040.20 = 30,179,562.60/x
  3. Step 3: Cross multiply
    90,763,836.60x = 136,128,040.20 × 30,179,562.60
  4. Step 4: Simplify right side
    90,763,836.60x = 4,108,284,710,831,216.50
  5. Step 5: Solve for x
    x = 4,108,284,710,831,216.50/90,763,836.60
  6. Step 6: Final answer
    x = 45,263,453.65

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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.