Home / 1,208,825,110.80-1,812,789,768.60-390,964,093.20

Finding the Fourth Proportional to 1,208,825,110.80, 1,812,789,768.60 and 390,964,093.20

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Solution

The fourth proportional to 1,208,825,110.80, 1,812,789,768.60 and 390,964,093.20 is: 586,301,278.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,208,825,110.80 : 1,812,789,768.60 = 390,964,093.20 : x
  2. Step 2: Convert to fraction form
    1,208,825,110.80/1,812,789,768.60 = 390,964,093.20/x
  3. Step 3: Cross multiply
    1,208,825,110.80x = 1,812,789,768.60 × 390,964,093.20
  4. Step 4: Simplify right side
    1,208,825,110.80x = 708,735,708,042,936,832
  5. Step 5: Solve for x
    x = 708,735,708,042,936,832/1,208,825,110.80
  6. Step 6: Final answer
    x = 586,301,278.58

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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.