Home / 139,115,815.20-208,673,722.80-36,890,186.40

Finding the Fourth Proportional to 139,115,815.20, 208,673,722.80 and 36,890,186.40

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Solution

The fourth proportional to 139,115,815.20, 208,673,722.80 and 36,890,186.40 is: 55,335,279.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,115,815.20 : 208,673,722.80 = 36,890,186.40 : x
  2. Step 2: Convert to fraction form
    139,115,815.20/208,673,722.80 = 36,890,186.40/x
  3. Step 3: Cross multiply
    139,115,815.20x = 208,673,722.80 × 36,890,186.40
  4. Step 4: Simplify right side
    139,115,815.20x = 7,698,012,530,873,930
  5. Step 5: Solve for x
    x = 7,698,012,530,873,930/139,115,815.20
  6. Step 6: Final answer
    x = 55,335,279.60

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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.