Home / 18,667,276.80-28,011,974.40-13,605,849.60

Finding the Fourth Proportional to 18,667,276.80, 28,011,974.40 and 13,605,849.60

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Solution

The fourth proportional to 18,667,276.80, 28,011,974.40 and 13,605,849.60 is: 20,416,835.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667,276.80 : 28,011,974.40 = 13,605,849.60 : x
  2. Step 2: Convert to fraction form
    18,667,276.80/28,011,974.40 = 13,605,849.60/x
  3. Step 3: Cross multiply
    18,667,276.80x = 28,011,974.40 × 13,605,849.60
  4. Step 4: Simplify right side
    18,667,276.80x = 381,126,710,685,450.19
  5. Step 5: Solve for x
    x = 381,126,710,685,450.19/18,667,276.80
  6. Step 6: Final answer
    x = 20,416,835.02

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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.