Home / 140,242,003.70-210,363,005.55-82,128,930.35

Finding the Fourth Proportional to 140,242,003.70, 210,363,005.55 and 82,128,930.35

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Solution

The fourth proportional to 140,242,003.70, 210,363,005.55 and 82,128,930.35 is: 123,193,395.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,242,003.70 : 210,363,005.55 = 82,128,930.35 : x
  2. Step 2: Convert to fraction form
    140,242,003.70/210,363,005.55 = 82,128,930.35/x
  3. Step 3: Cross multiply
    140,242,003.70x = 210,363,005.55 × 82,128,930.35
  4. Step 4: Simplify right side
    140,242,003.70x = 17,276,888,631,032,614
  5. Step 5: Solve for x
    x = 17,276,888,631,032,614/140,242,003.70
  6. Step 6: Final answer
    x = 123,193,395.53

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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.