Home / 282,438,027.82-389,870,206.86-212,076,895.24

Finding the Fourth Proportional to 282,438,027.82, 389,870,206.86 and 212,076,895.24

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Solution

The fourth proportional to 282,438,027.82, 389,870,206.86 and 212,076,895.24 is: 292,745,504.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,438,027.82 : 389,870,206.86 = 212,076,895.24 : x
  2. Step 2: Convert to fraction form
    282,438,027.82/389,870,206.86 = 212,076,895.24/x
  3. Step 3: Cross multiply
    282,438,027.82x = 389,870,206.86 × 212,076,895.24
  4. Step 4: Simplify right side
    282,438,027.82x = 82,682,463,017,445,360
  5. Step 5: Solve for x
    x = 82,682,463,017,445,360/282,438,027.82
  6. Step 6: Final answer
    x = 292,745,504.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.