Home / 280,189,335.60-420,284,003.40-276,362,960.40

Finding the Fourth Proportional to 280,189,335.60, 420,284,003.40 and 276,362,960.40

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Solution

The fourth proportional to 280,189,335.60, 420,284,003.40 and 276,362,960.40 is: 414,544,440.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,189,335.60 : 420,284,003.40 = 276,362,960.40 : x
  2. Step 2: Convert to fraction form
    280,189,335.60/420,284,003.40 = 276,362,960.40/x
  3. Step 3: Cross multiply
    280,189,335.60x = 420,284,003.40 × 276,362,960.40
  4. Step 4: Simplify right side
    280,189,335.60x = 116,150,931,388,387,648
  5. Step 5: Solve for x
    x = 116,150,931,388,387,648/280,189,335.60
  6. Step 6: Final answer
    x = 414,544,440.60

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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.