Home / 619,246,855.20-928,870,282.80-210,303,005.70

Finding the Fourth Proportional to 619,246,855.20, 928,870,282.80 and 210,303,005.70

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Solution

The fourth proportional to 619,246,855.20, 928,870,282.80 and 210,303,005.70 is: 315,454,508.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,246,855.20 : 928,870,282.80 = 210,303,005.70 : x
  2. Step 2: Convert to fraction form
    619,246,855.20/928,870,282.80 = 210,303,005.70/x
  3. Step 3: Cross multiply
    619,246,855.20x = 928,870,282.80 × 210,303,005.70
  4. Step 4: Simplify right side
    619,246,855.20x = 195,344,212,378,248,992
  5. Step 5: Solve for x
    x = 195,344,212,378,248,992/619,246,855.20
  6. Step 6: Final answer
    x = 315,454,508.55

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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.