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Finding the Fourth Proportional to 102,976,102.60, 154,464,153.90 and 54,435,200.20

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Solution

The fourth proportional to 102,976,102.60, 154,464,153.90 and 54,435,200.20 is: 81,652,800.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,976,102.60 : 154,464,153.90 = 54,435,200.20 : x
  2. Step 2: Convert to fraction form
    102,976,102.60/154,464,153.90 = 54,435,200.20/x
  3. Step 3: Cross multiply
    102,976,102.60x = 154,464,153.90 × 54,435,200.20
  4. Step 4: Simplify right side
    102,976,102.60x = 8,408,287,141,270,112
  5. Step 5: Solve for x
    x = 8,408,287,141,270,112/102,976,102.60
  6. Step 6: Final answer
    x = 81,652,800.30

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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.