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Finding the Fourth Proportional to 108,889,408.80, 163,334,113.20 and 54,469,850.40

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Solution

The fourth proportional to 108,889,408.80, 163,334,113.20 and 54,469,850.40 is: 81,704,775.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,889,408.80 : 163,334,113.20 = 54,469,850.40 : x
  2. Step 2: Convert to fraction form
    108,889,408.80/163,334,113.20 = 54,469,850.40/x
  3. Step 3: Cross multiply
    108,889,408.80x = 163,334,113.20 × 54,469,850.40
  4. Step 4: Simplify right side
    108,889,408.80x = 8,896,784,711,220,664
  5. Step 5: Solve for x
    x = 8,896,784,711,220,664/108,889,408.80
  6. Step 6: Final answer
    x = 81,704,775.60

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1.5x scale

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.