Home / 2,139,447,789.60-3,209,171,684.40-1,948,979,335.20

Finding the Fourth Proportional to 2,139,447,789.60, 3,209,171,684.40 and 1,948,979,335.20

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Solution

The fourth proportional to 2,139,447,789.60, 3,209,171,684.40 and 1,948,979,335.20 is: 2,923,469,002.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139,447,789.60 : 3,209,171,684.40 = 1,948,979,335.20 : x
  2. Step 2: Convert to fraction form
    2,139,447,789.60/3,209,171,684.40 = 1,948,979,335.20/x
  3. Step 3: Cross multiply
    2,139,447,789.60x = 3,209,171,684.40 × 1,948,979,335.20
  4. Step 4: Simplify right side
    2,139,447,789.60x = 6,254,609,296,004,576,256
  5. Step 5: Solve for x
    x = 6,254,609,296,004,576,256/2,139,447,789.60
  6. Step 6: Final answer
    x = 2,923,469,002.80

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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.