Home / 139,145,433.76-208,743,809.32-45,777,659.64

Finding the Fourth Proportional to 139,145,433.76, 208,743,809.32 and 45,777,659.64

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Solution

The fourth proportional to 139,145,433.76, 208,743,809.32 and 45,777,659.64 is: 68,674,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,145,433.76 : 208,743,809.32 = 45,777,659.64 : x
  2. Step 2: Convert to fraction form
    139,145,433.76/208,743,809.32 = 45,777,659.64/x
  3. Step 3: Cross multiply
    139,145,433.76x = 208,743,809.32 × 45,777,659.64
  4. Step 4: Simplify right side
    139,145,433.76x = 9,555,803,055,199,116
  5. Step 5: Solve for x
    x = 9,555,803,055,199,116/139,145,433.76
  6. Step 6: Final answer
    x = 68,674,930.95

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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.