Home / 55,880,856.81-77,118,121.83-31,102,630.68

Finding the Fourth Proportional to 55,880,856.81, 77,118,121.83 and 31,102,630.68

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Solution

The fourth proportional to 55,880,856.81, 77,118,121.83 and 31,102,630.68 is: 42,923,043.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,880,856.81 : 77,118,121.83 = 31,102,630.68 : x
  2. Step 2: Convert to fraction form
    55,880,856.81/77,118,121.83 = 31,102,630.68/x
  3. Step 3: Cross multiply
    55,880,856.81x = 77,118,121.83 × 31,102,630.68
  4. Step 4: Simplify right side
    55,880,856.81x = 2,398,576,462,013,735.50
  5. Step 5: Solve for x
    x = 2,398,576,462,013,735.50/55,880,856.81
  6. Step 6: Final answer
    x = 42,923,043.76

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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.