Home / 139,872,002.20-209,808,003.30-137,184,616.60

Finding the Fourth Proportional to 139,872,002.20, 209,808,003.30 and 137,184,616.60

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Solution

The fourth proportional to 139,872,002.20, 209,808,003.30 and 137,184,616.60 is: 205,776,924.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,872,002.20 : 209,808,003.30 = 137,184,616.60 : x
  2. Step 2: Convert to fraction form
    139,872,002.20/209,808,003.30 = 137,184,616.60/x
  3. Step 3: Cross multiply
    139,872,002.20x = 209,808,003.30 × 137,184,616.60
  4. Step 4: Simplify right side
    139,872,002.20x = 28,782,430,492,322,036
  5. Step 5: Solve for x
    x = 28,782,430,492,322,036/139,872,002.20
  6. Step 6: Final answer
    x = 205,776,924.90

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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.