Home / 70,455,140.20-105,682,710.30-51,245,309.80

Finding the Fourth Proportional to 70,455,140.20, 105,682,710.30 and 51,245,309.80

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Solution

The fourth proportional to 70,455,140.20, 105,682,710.30 and 51,245,309.80 is: 76,867,964.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,455,140.20 : 105,682,710.30 = 51,245,309.80 : x
  2. Step 2: Convert to fraction form
    70,455,140.20/105,682,710.30 = 51,245,309.80/x
  3. Step 3: Cross multiply
    70,455,140.20x = 105,682,710.30 × 51,245,309.80
  4. Step 4: Simplify right side
    70,455,140.20x = 5,415,743,229,827,150
  5. Step 5: Solve for x
    x = 5,415,743,229,827,150/70,455,140.20
  6. Step 6: Final answer
    x = 76,867,964.70

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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.