Home / 2,167,909,777.85-2,991,715,493.31-1,228,112,419.73

Finding the Fourth Proportional to 2,167,909,777.85, 2,991,715,493.31 and 1,228,112,419.73

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Solution

The fourth proportional to 2,167,909,777.85, 2,991,715,493.31 and 1,228,112,419.73 is: 1,694,795,139.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,167,909,777.85 : 2,991,715,493.31 = 1,228,112,419.73 : x
  2. Step 2: Convert to fraction form
    2,167,909,777.85/2,991,715,493.31 = 1,228,112,419.73/x
  3. Step 3: Cross multiply
    2,167,909,777.85x = 2,991,715,493.31 × 1,228,112,419.73
  4. Step 4: Simplify right side
    2,167,909,777.85x = 3,674,162,953,617,715,712
  5. Step 5: Solve for x
    x = 3,674,162,953,617,715,712/2,167,909,777.85
  6. Step 6: Final answer
    x = 1,694,795,139.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.