Home / 280,008,027.20-420,012,040.80-183,262,145.60

Finding the Fourth Proportional to 280,008,027.20, 420,012,040.80 and 183,262,145.60

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Solution

The fourth proportional to 280,008,027.20, 420,012,040.80 and 183,262,145.60 is: 274,893,218.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,008,027.20 : 420,012,040.80 = 183,262,145.60 : x
  2. Step 2: Convert to fraction form
    280,008,027.20/420,012,040.80 = 183,262,145.60/x
  3. Step 3: Cross multiply
    280,008,027.20x = 420,012,040.80 × 183,262,145.60
  4. Step 4: Simplify right side
    280,008,027.20x = 76,972,307,774,842,736
  5. Step 5: Solve for x
    x = 76,972,307,774,842,736/280,008,027.20
  6. Step 6: Final answer
    x = 274,893,218.40

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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.