Home / 282,438,026.82-389,870,205.48-212,076,894.24

Finding the Fourth Proportional to 282,438,026.82, 389,870,205.48 and 212,076,894.24

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Solution

The fourth proportional to 282,438,026.82, 389,870,205.48 and 212,076,894.24 is: 292,745,503.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,438,026.82 : 389,870,205.48 = 212,076,894.24 : x
  2. Step 2: Convert to fraction form
    282,438,026.82/389,870,205.48 = 212,076,894.24/x
  3. Step 3: Cross multiply
    282,438,026.82x = 389,870,205.48 × 212,076,894.24
  4. Step 4: Simplify right side
    282,438,026.82x = 82,682,462,334,909,040
  5. Step 5: Solve for x
    x = 82,682,462,334,909,040/282,438,026.82
  6. Step 6: Final answer
    x = 292,745,503.38

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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.