Home / 919,380,685.05-1,268,772,262.97-501,719,890.95

Finding the Fourth Proportional to 919,380,685.05, 1,268,772,262.97 and 501,719,890.95

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Solution

The fourth proportional to 919,380,685.05, 1,268,772,262.97 and 501,719,890.95 is: 692,388,138.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,380,685.05 : 1,268,772,262.97 = 501,719,890.95 : x
  2. Step 2: Convert to fraction form
    919,380,685.05/1,268,772,262.97 = 501,719,890.95/x
  3. Step 3: Cross multiply
    919,380,685.05x = 1,268,772,262.97 × 501,719,890.95
  4. Step 4: Simplify right side
    919,380,685.05x = 636,568,281,415,184,512
  5. Step 5: Solve for x
    x = 636,568,281,415,184,512/919,380,685.05
  6. Step 6: Final answer
    x = 692,388,138.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.