Home / 1,996,205,005.60-2,994,507,610.80-685,934,490.40

Finding the Fourth Proportional to 1,996,205,005.60, 2,994,507,610.80 and 685,934,490.40

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Solution

The fourth proportional to 1,996,205,005.60, 2,994,507,610.80 and 685,934,490.40 is: 1,028,970,494.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,996,205,005.60 : 2,994,507,610.80 = 685,934,490.40 : x
  2. Step 2: Convert to fraction form
    1,996,205,005.60/2,994,507,610.80 = 685,934,490.40/x
  3. Step 3: Cross multiply
    1,996,205,005.60x = 2,994,507,610.80 × 685,934,490.40
  4. Step 4: Simplify right side
    1,996,205,005.60x = 2,054,036,052,013,019,648
  5. Step 5: Solve for x
    x = 2,054,036,052,013,019,648/1,996,205,005.60
  6. Step 6: Final answer
    x = 1,028,970,494.64

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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.