Home / 13,430,829.20-18,529,282.69-8,265,222.68

Finding the Fourth Proportional to 13,430,829.20, 18,529,282.69 and 8,265,222.68

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Solution

The fourth proportional to 13,430,829.20, 18,529,282.69 and 8,265,222.68 is: 11,402,769.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430,829.20 : 18,529,282.69 = 8,265,222.68 : x
  2. Step 2: Convert to fraction form
    13,430,829.20/18,529,282.69 = 8,265,222.68/x
  3. Step 3: Cross multiply
    13,430,829.20x = 18,529,282.69 × 8,265,222.68
  4. Step 4: Simplify right side
    13,430,829.20x = 153,148,647,420,209.94
  5. Step 5: Solve for x
    x = 153,148,647,420,209.94/13,430,829.20
  6. Step 6: Final answer
    x = 11,402,769.34

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1.5x scale

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.