Home / 1,327,342,708.80-1,991,109,722.58-509,455,009.80

Finding the Fourth Proportional to 1,327,342,708.80, 1,991,109,722.58 and 509,455,009.80

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Solution

The fourth proportional to 1,327,342,708.80, 1,991,109,722.58 and 509,455,009.80 is: 764,219,230.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,327,342,708.80 : 1,991,109,722.58 = 509,455,009.80 : x
  2. Step 2: Convert to fraction form
    1,327,342,708.80/1,991,109,722.58 = 509,455,009.80/x
  3. Step 3: Cross multiply
    1,327,342,708.80x = 1,991,109,722.58 × 509,455,009.80
  4. Step 4: Simplify right side
    1,327,342,708.80x = 1,014,380,823,229,869,184
  5. Step 5: Solve for x
    x = 1,014,380,823,229,869,184/1,327,342,708.80
  6. Step 6: Final answer
    x = 764,219,230.27

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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.