Home / 13,903,536,632.40-20,855,304,948.60-12,978,404,139.60

Finding the Fourth Proportional to 13,903,536,632.40, 20,855,304,948.60 and 12,978,404,139.60

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Solution

The fourth proportional to 13,903,536,632.40, 20,855,304,948.60 and 12,978,404,139.60 is: 19,467,606,209.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903,536,632.40 : 20,855,304,948.60 = 12,978,404,139.60 : x
  2. Step 2: Convert to fraction form
    13,903,536,632.40/20,855,304,948.60 = 12,978,404,139.60/x
  3. Step 3: Cross multiply
    13,903,536,632.40x = 20,855,304,948.60 × 12,978,404,139.60
  4. Step 4: Simplify right side
    13,903,536,632.40x = 270,668,576,077,530,595,328
  5. Step 5: Solve for x
    x = 270,668,576,077,530,595,328/13,903,536,632.40
  6. Step 6: Final answer
    x = 19,467,606,209.40

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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.