Home / 142,684,401.52-196,905,481.87-77,494,305.52

Finding the Fourth Proportional to 142,684,401.52, 196,905,481.87 and 77,494,305.52

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Solution

The fourth proportional to 142,684,401.52, 196,905,481.87 and 77,494,305.52 is: 106,942,688.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,684,401.52 : 196,905,481.87 = 77,494,305.52 : x
  2. Step 2: Convert to fraction form
    142,684,401.52/196,905,481.87 = 77,494,305.52/x
  3. Step 3: Cross multiply
    142,684,401.52x = 196,905,481.87 × 77,494,305.52
  4. Step 4: Simplify right side
    142,684,401.52x = 15,259,053,570,209,130
  5. Step 5: Solve for x
    x = 15,259,053,570,209,130/142,684,401.52
  6. Step 6: Final answer
    x = 106,942,688.95

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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.