Home / 1,319,470,891.20-1,977,505,725.60-801,351,345.60

Finding the Fourth Proportional to 1,319,470,891.20, 1,977,505,725.60 and 801,351,345.60

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Solution

The fourth proportional to 1,319,470,891.20, 1,977,505,725.60 and 801,351,345.60 is: 1,200,994,189.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,470,891.20 : 1,977,505,725.60 = 801,351,345.60 : x
  2. Step 2: Convert to fraction form
    1,319,470,891.20/1,977,505,725.60 = 801,351,345.60/x
  3. Step 3: Cross multiply
    1,319,470,891.20x = 1,977,505,725.60 × 801,351,345.60
  4. Step 4: Simplify right side
    1,319,470,891.20x = 1,584,676,874,141,264,384
  5. Step 5: Solve for x
    x = 1,584,676,874,141,264,384/1,319,470,891.20
  6. Step 6: Final answer
    x = 1,200,994,189.95

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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.