Home / 109,156,847.20-163,735,270.80-100,228,638.40

Finding the Fourth Proportional to 109,156,847.20, 163,735,270.80 and 100,228,638.40

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Solution

The fourth proportional to 109,156,847.20, 163,735,270.80 and 100,228,638.40 is: 150,342,957.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,156,847.20 : 163,735,270.80 = 100,228,638.40 : x
  2. Step 2: Convert to fraction form
    109,156,847.20/163,735,270.80 = 100,228,638.40/x
  3. Step 3: Cross multiply
    109,156,847.20x = 163,735,270.80 × 100,228,638.40
  4. Step 4: Simplify right side
    109,156,847.20x = 16,410,963,250,339,280
  5. Step 5: Solve for x
    x = 16,410,963,250,339,280/109,156,847.20
  6. Step 6: Final answer
    x = 150,342,957.60

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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.