Home / 871,785,450.70-1,307,682,992.21-216,736,477.74

Finding the Fourth Proportional to 871,785,450.70, 1,307,682,992.21 and 216,736,477.74

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Solution

The fourth proportional to 871,785,450.70, 1,307,682,992.21 and 216,736,477.74 is: 325,105,913.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,785,450.70 : 1,307,682,992.21 = 216,736,477.74 : x
  2. Step 2: Convert to fraction form
    871,785,450.70/1,307,682,992.21 = 216,736,477.74/x
  3. Step 3: Cross multiply
    871,785,450.70x = 1,307,682,992.21 × 216,736,477.74
  4. Step 4: Simplify right side
    871,785,450.70x = 283,422,605,731,015,584
  5. Step 5: Solve for x
    x = 283,422,605,731,015,584/871,785,450.70
  6. Step 6: Final answer
    x = 325,105,913.97

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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.