Home / 100,097,132.40-150,145,698.60-78,598,047.60

Finding the Fourth Proportional to 100,097,132.40, 150,145,698.60 and 78,598,047.60

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Solution

The fourth proportional to 100,097,132.40, 150,145,698.60 and 78,598,047.60 is: 117,897,071.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,097,132.40 : 150,145,698.60 = 78,598,047.60 : x
  2. Step 2: Convert to fraction form
    100,097,132.40/150,145,698.60 = 78,598,047.60/x
  3. Step 3: Cross multiply
    100,097,132.40x = 150,145,698.60 × 78,598,047.60
  4. Step 4: Simplify right side
    100,097,132.40x = 11,801,158,765,498,052
  5. Step 5: Solve for x
    x = 11,801,158,765,498,052/100,097,132.40
  6. Step 6: Final answer
    x = 117,897,071.40

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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.