Home / 2,620,405,009.20-3,930,607,513.80-1,242,909,937.20

Finding the Fourth Proportional to 2,620,405,009.20, 3,930,607,513.80 and 1,242,909,937.20

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Solution

The fourth proportional to 2,620,405,009.20, 3,930,607,513.80 and 1,242,909,937.20 is: 1,864,364,905.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,620,405,009.20 : 3,930,607,513.80 = 1,242,909,937.20 : x
  2. Step 2: Convert to fraction form
    2,620,405,009.20/3,930,607,513.80 = 1,242,909,937.20/x
  3. Step 3: Cross multiply
    2,620,405,009.20x = 3,930,607,513.80 × 1,242,909,937.20
  4. Step 4: Simplify right side
    2,620,405,009.20x = 4,885,391,138,135,006,208
  5. Step 5: Solve for x
    x = 4,885,391,138,135,006,208/2,620,405,009.20
  6. Step 6: Final answer
    x = 1,864,364,905.80

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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.