Home / 19,309,667.70-28,964,501.55-12,591,203.70

Finding the Fourth Proportional to 19,309,667.70, 28,964,501.55 and 12,591,203.70

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Solution

The fourth proportional to 19,309,667.70, 28,964,501.55 and 12,591,203.70 is: 18,886,805.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309,667.70 : 28,964,501.55 = 12,591,203.70 : x
  2. Step 2: Convert to fraction form
    19,309,667.70/28,964,501.55 = 12,591,203.70/x
  3. Step 3: Cross multiply
    19,309,667.70x = 28,964,501.55 × 12,591,203.70
  4. Step 4: Simplify right side
    19,309,667.70x = 364,697,939,085,015.75
  5. Step 5: Solve for x
    x = 364,697,939,085,015.75/19,309,667.70
  6. Step 6: Final answer
    x = 18,886,805.55

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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.