Home / 871,785,451.70-1,307,682,993.71-216,736,478.74

Finding the Fourth Proportional to 871,785,451.70, 1,307,682,993.71 and 216,736,478.74

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Solution

The fourth proportional to 871,785,451.70, 1,307,682,993.71 and 216,736,478.74 is: 325,105,915.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,785,451.70 : 1,307,682,993.71 = 216,736,478.74 : x
  2. Step 2: Convert to fraction form
    871,785,451.70/1,307,682,993.71 = 216,736,478.74/x
  3. Step 3: Cross multiply
    871,785,451.70x = 1,307,682,993.71 × 216,736,478.74
  4. Step 4: Simplify right side
    871,785,451.70x = 283,422,607,364,886,976
  5. Step 5: Solve for x
    x = 283,422,607,364,886,976/871,785,451.70
  6. Step 6: Final answer
    x = 325,105,915.47

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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.