Home / 1,780,488,607.96-2,667,361,852.98-1,188,493,808.78

Finding the Fourth Proportional to 1,780,488,607.96, 2,667,361,852.98 and 1,188,493,808.78

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Solution

The fourth proportional to 1,780,488,607.96, 2,667,361,852.98 and 1,188,493,808.78 is: 1,780,490,497.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,780,488,607.96 : 2,667,361,852.98 = 1,188,493,808.78 : x
  2. Step 2: Convert to fraction form
    1,780,488,607.96/2,667,361,852.98 = 1,188,493,808.78/x
  3. Step 3: Cross multiply
    1,780,488,607.96x = 2,667,361,852.98 × 1,188,493,808.78
  4. Step 4: Simplify right side
    1,780,488,607.96x = 3,170,143,048,042,678,784
  5. Step 5: Solve for x
    x = 3,170,143,048,042,678,784/1,780,488,607.96
  6. Step 6: Final answer
    x = 1,780,490,497.87

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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.