Home / 102,154,735.88-140,972,374.20-55,745,779.40

Finding the Fourth Proportional to 102,154,735.88, 140,972,374.20 and 55,745,779.40

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Solution

The fourth proportional to 102,154,735.88, 140,972,374.20 and 55,745,779.40 is: 76,928,541.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,154,735.88 : 140,972,374.20 = 55,745,779.40 : x
  2. Step 2: Convert to fraction form
    102,154,735.88/140,972,374.20 = 55,745,779.40/x
  3. Step 3: Cross multiply
    102,154,735.88x = 140,972,374.20 × 55,745,779.40
  4. Step 4: Simplify right side
    102,154,735.88x = 7,858,614,873,647,451
  5. Step 5: Solve for x
    x = 7,858,614,873,647,451/102,154,735.88
  6. Step 6: Final answer
    x = 76,928,541.84

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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.