Home / 874,439,919.88-1,311,889,603.21-314,258,307.66

Finding the Fourth Proportional to 874,439,919.88, 1,311,889,603.21 and 314,258,307.66

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Solution

The fourth proportional to 874,439,919.88, 1,311,889,603.21 and 314,258,307.66 is: 471,470,020.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,439,919.88 : 1,311,889,603.21 = 314,258,307.66 : x
  2. Step 2: Convert to fraction form
    874,439,919.88/1,311,889,603.21 = 314,258,307.66/x
  3. Step 3: Cross multiply
    874,439,919.88x = 1,311,889,603.21 × 314,258,307.66
  4. Step 4: Simplify right side
    874,439,919.88x = 412,272,206,540,737,856
  5. Step 5: Solve for x
    x = 412,272,206,540,737,856/874,439,919.88
  6. Step 6: Final answer
    x = 471,470,020.03

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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.