Home / 871,785,449.20-1,307,682,989.96-216,736,476.24

Finding the Fourth Proportional to 871,785,449.20, 1,307,682,989.96 and 216,736,476.24

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Solution

The fourth proportional to 871,785,449.20, 1,307,682,989.96 and 216,736,476.24 is: 325,105,911.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,785,449.20 : 1,307,682,989.96 = 216,736,476.24 : x
  2. Step 2: Convert to fraction form
    871,785,449.20/1,307,682,989.96 = 216,736,476.24/x
  3. Step 3: Cross multiply
    871,785,449.20x = 1,307,682,989.96 × 216,736,476.24
  4. Step 4: Simplify right side
    871,785,449.20x = 283,422,603,281,834,016
  5. Step 5: Solve for x
    x = 283,422,603,281,834,016/871,785,449.20
  6. Step 6: Final answer
    x = 325,105,911.72

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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.