Home / 220,535,546.40-330,803,319.60-91,100,138.40

Finding the Fourth Proportional to 220,535,546.40, 330,803,319.60 and 91,100,138.40

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Solution

The fourth proportional to 220,535,546.40, 330,803,319.60 and 91,100,138.40 is: 136,650,207.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,535,546.40 : 330,803,319.60 = 91,100,138.40 : x
  2. Step 2: Convert to fraction form
    220,535,546.40/330,803,319.60 = 91,100,138.40/x
  3. Step 3: Cross multiply
    220,535,546.40x = 330,803,319.60 × 91,100,138.40
  4. Step 4: Simplify right side
    220,535,546.40x = 30,136,228,198,739,436
  5. Step 5: Solve for x
    x = 30,136,228,198,739,436/220,535,546.40
  6. Step 6: Final answer
    x = 136,650,207.60

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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.