Home / 1,679,620,458.80-2,519,430,688.20-1,068,912,081.20

Finding the Fourth Proportional to 1,679,620,458.80, 2,519,430,688.20 and 1,068,912,081.20

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Solution

The fourth proportional to 1,679,620,458.80, 2,519,430,688.20 and 1,068,912,081.20 is: 1,603,368,121.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,620,458.80 : 2,519,430,688.20 = 1,068,912,081.20 : x
  2. Step 2: Convert to fraction form
    1,679,620,458.80/2,519,430,688.20 = 1,068,912,081.20/x
  3. Step 3: Cross multiply
    1,679,620,458.80x = 2,519,430,688.20 × 1,068,912,081.20
  4. Step 4: Simplify right side
    1,679,620,458.80x = 2,693,049,900,363,010,048
  5. Step 5: Solve for x
    x = 2,693,049,900,363,010,048/1,679,620,458.80
  6. Step 6: Final answer
    x = 1,603,368,121.80

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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.