Home / 139,968,460.60-209,952,690.90-129,764,793.40

Finding the Fourth Proportional to 139,968,460.60, 209,952,690.90 and 129,764,793.40

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Solution

The fourth proportional to 139,968,460.60, 209,952,690.90 and 129,764,793.40 is: 194,647,190.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,460.60 : 209,952,690.90 = 129,764,793.40 : x
  2. Step 2: Convert to fraction form
    139,968,460.60/209,952,690.90 = 129,764,793.40/x
  3. Step 3: Cross multiply
    139,968,460.60x = 209,952,690.90 × 129,764,793.40
  4. Step 4: Simplify right side
    139,968,460.60x = 27,244,467,558,412,564
  5. Step 5: Solve for x
    x = 27,244,467,558,412,564/139,968,460.60
  6. Step 6: Final answer
    x = 194,647,190.10

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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.