Home / 2,113,197,400.80-3,170,243,998.80-639,216,165.60

Finding the Fourth Proportional to 2,113,197,400.80, 3,170,243,998.80 and 639,216,165.60

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Solution

The fourth proportional to 2,113,197,400.80, 3,170,243,998.80 and 639,216,165.60 is: 958,959,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,113,197,400.80 : 3,170,243,998.80 = 639,216,165.60 : x
  2. Step 2: Convert to fraction form
    2,113,197,400.80/3,170,243,998.80 = 639,216,165.60/x
  3. Step 3: Cross multiply
    2,113,197,400.80x = 3,170,243,998.80 × 639,216,165.60
  4. Step 4: Simplify right side
    2,113,197,400.80x = 2,026,471,212,929,347,072
  5. Step 5: Solve for x
    x = 2,026,471,212,929,347,072/2,113,197,400.80
  6. Step 6: Final answer
    x = 958,959,731.90

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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.