Home / 1,247,380,784,513.10-1,867,848,767,426.20-860,899,473,991.55

Finding the Fourth Proportional to 1,247,380,784,513.10, 1,867,848,767,426.20 and 860,899,473,991.55

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Solution

The fourth proportional to 1,247,380,784,513.10, 1,867,848,767,426.20 and 860,899,473,991.55 is: 1,289,125,214,479.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,247,380,784,513.10 : 1,867,848,767,426.20 = 860,899,473,991.55 : x
  2. Step 2: Convert to fraction form
    1,247,380,784,513.10/1,867,848,767,426.20 = 860,899,473,991.55/x
  3. Step 3: Cross multiply
    1,247,380,784,513.10x = 1,867,848,767,426.20 × 860,899,473,991.55
  4. Step 4: Simplify right side
    1,247,380,784,513.10x = 1,608,030,021,372,980,613,873,664
  5. Step 5: Solve for x
    x = 1,608,030,021,372,980,613,873,664/1,247,380,784,513.10
  6. Step 6: Final answer
    x = 1,289,125,214,479.44

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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.