Home / 21,919,835.44-30,249,431.74-12,130,954.66

Finding the Fourth Proportional to 21,919,835.44, 30,249,431.74 and 12,130,954.66

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Solution

The fourth proportional to 21,919,835.44, 30,249,431.74 and 12,130,954.66 is: 16,740,749.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,919,835.44 : 30,249,431.74 = 12,130,954.66 : x
  2. Step 2: Convert to fraction form
    21,919,835.44/30,249,431.74 = 12,130,954.66/x
  3. Step 3: Cross multiply
    21,919,835.44x = 30,249,431.74 × 12,130,954.66
  4. Step 4: Simplify right side
    21,919,835.44x = 366,954,484,928,704.88
  5. Step 5: Solve for x
    x = 366,954,484,928,704.88/21,919,835.44
  6. Step 6: Final answer
    x = 16,740,749.99

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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.