Home / 816,728,992.20-1,225,571,785.20-299,211,746.40

Finding the Fourth Proportional to 816,728,992.20, 1,225,571,785.20 and 299,211,746.40

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Solution

The fourth proportional to 816,728,992.20, 1,225,571,785.20 and 299,211,746.40 is: 448,992,845.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,728,992.20 : 1,225,571,785.20 = 299,211,746.40 : x
  2. Step 2: Convert to fraction form
    816,728,992.20/1,225,571,785.20 = 299,211,746.40/x
  3. Step 3: Cross multiply
    816,728,992.20x = 1,225,571,785.20 × 299,211,746.40
  4. Step 4: Simplify right side
    816,728,992.20x = 366,705,474,188,257,664
  5. Step 5: Solve for x
    x = 366,705,474,188,257,664/816,728,992.20
  6. Step 6: Final answer
    x = 448,992,845.47

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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.