Home / 139,872,267.20-209,808,400.80-137,184,881.60

Finding the Fourth Proportional to 139,872,267.20, 209,808,400.80 and 137,184,881.60

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Solution

The fourth proportional to 139,872,267.20, 209,808,400.80 and 137,184,881.60 is: 205,777,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,872,267.20 : 209,808,400.80 = 137,184,881.60 : x
  2. Step 2: Convert to fraction form
    139,872,267.20/209,808,400.80 = 137,184,881.60/x
  3. Step 3: Cross multiply
    139,872,267.20x = 209,808,400.80 × 137,184,881.60
  4. Step 4: Simplify right side
    139,872,267.20x = 28,782,540,622,433,344
  5. Step 5: Solve for x
    x = 28,782,540,622,433,344/139,872,267.20
  6. Step 6: Final answer
    x = 205,777,322.40

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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.