Home / 108,907,984.20-163,361,976.30-84,249,121.80

Finding the Fourth Proportional to 108,907,984.20, 163,361,976.30 and 84,249,121.80

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Solution

The fourth proportional to 108,907,984.20, 163,361,976.30 and 84,249,121.80 is: 126,373,682.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,907,984.20 : 163,361,976.30 = 84,249,121.80 : x
  2. Step 2: Convert to fraction form
    108,907,984.20/163,361,976.30 = 84,249,121.80/x
  3. Step 3: Cross multiply
    108,907,984.20x = 163,361,976.30 × 84,249,121.80
  4. Step 4: Simplify right side
    108,907,984.20x = 13,763,103,038,787,414
  5. Step 5: Solve for x
    x = 13,763,103,038,787,414/108,907,984.20
  6. Step 6: Final answer
    x = 126,373,682.70

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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.