Home / 12,483,780.20-18,739,667.10-9,656,426.60

Finding the Fourth Proportional to 12,483,780.20, 18,739,667.10 and 9,656,426.60

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Solution

The fourth proportional to 12,483,780.20, 18,739,667.10 and 9,656,426.60 is: 14,495,466.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,483,780.20 : 18,739,667.10 = 9,656,426.60 : x
  2. Step 2: Convert to fraction form
    12,483,780.20/18,739,667.10 = 9,656,426.60/x
  3. Step 3: Cross multiply
    12,483,780.20x = 18,739,667.10 × 9,656,426.60
  4. Step 4: Simplify right side
    12,483,780.20x = 180,958,219,859,584.88
  5. Step 5: Solve for x
    x = 180,958,219,859,584.88/12,483,780.20
  6. Step 6: Final answer
    x = 14,495,466.67

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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.