Home / 3,120,919.60-4,681,379.40-1,924,193.20

Finding the Fourth Proportional to 3,120,919.60, 4,681,379.40 and 1,924,193.20

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Solution

The fourth proportional to 3,120,919.60, 4,681,379.40 and 1,924,193.20 is: 2,886,289.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,919.60 : 4,681,379.40 = 1,924,193.20 : x
  2. Step 2: Convert to fraction form
    3,120,919.60/4,681,379.40 = 1,924,193.20/x
  3. Step 3: Cross multiply
    3,120,919.60x = 4,681,379.40 × 1,924,193.20
  4. Step 4: Simplify right side
    3,120,919.60x = 9,007,878,408,100.08
  5. Step 5: Solve for x
    x = 9,007,878,408,100.08/3,120,919.60
  6. Step 6: Final answer
    x = 2,886,289.80

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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.