Home / 485,111,819.60-727,667,729.40-193,834,912.40

Finding the Fourth Proportional to 485,111,819.60, 727,667,729.40 and 193,834,912.40

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Solution

The fourth proportional to 485,111,819.60, 727,667,729.40 and 193,834,912.40 is: 290,752,368.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,111,819.60 : 727,667,729.40 = 193,834,912.40 : x
  2. Step 2: Convert to fraction form
    485,111,819.60/727,667,729.40 = 193,834,912.40/x
  3. Step 3: Cross multiply
    485,111,819.60x = 727,667,729.40 × 193,834,912.40
  4. Step 4: Simplify right side
    485,111,819.60x = 141,047,410,584,555,904
  5. Step 5: Solve for x
    x = 141,047,410,584,555,904/485,111,819.60
  6. Step 6: Final answer
    x = 290,752,368.60

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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.