Home / 280,184,109.60-420,276,164.40-264,311,738.40

Finding the Fourth Proportional to 280,184,109.60, 420,276,164.40 and 264,311,738.40

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Solution

The fourth proportional to 280,184,109.60, 420,276,164.40 and 264,311,738.40 is: 396,467,607.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,184,109.60 : 420,276,164.40 = 264,311,738.40 : x
  2. Step 2: Convert to fraction form
    280,184,109.60/420,276,164.40 = 264,311,738.40/x
  3. Step 3: Cross multiply
    280,184,109.60x = 420,276,164.40 × 264,311,738.40
  4. Step 4: Simplify right side
    280,184,109.60x = 111,083,923,620,648,192
  5. Step 5: Solve for x
    x = 111,083,923,620,648,192/280,184,109.60
  6. Step 6: Final answer
    x = 396,467,607.60

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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.