Home / 20,606,607.12-30,873,535.74-12,503,127.36

Finding the Fourth Proportional to 20,606,607.12, 30,873,535.74 and 12,503,127.36

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Solution

The fourth proportional to 20,606,607.12, 30,873,535.74 and 12,503,127.36 is: 18,732,620.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,606,607.12 : 30,873,535.74 = 12,503,127.36 : x
  2. Step 2: Convert to fraction form
    20,606,607.12/30,873,535.74 = 12,503,127.36/x
  3. Step 3: Cross multiply
    20,606,607.12x = 30,873,535.74 × 12,503,127.36
  4. Step 4: Simplify right side
    20,606,607.12x = 386,015,749,410,731.81
  5. Step 5: Solve for x
    x = 386,015,749,410,731.81/20,606,607.12
  6. Step 6: Final answer
    x = 18,732,620.42

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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.