Home / 139,743,530.37-192,838,200.87-77,019,437.25

Finding the Fourth Proportional to 139,743,530.37, 192,838,200.87 and 77,019,437.25

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Solution

The fourth proportional to 139,743,530.37, 192,838,200.87 and 77,019,437.25 is: 106,282,485.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,743,530.37 : 192,838,200.87 = 77,019,437.25 : x
  2. Step 2: Convert to fraction form
    139,743,530.37/192,838,200.87 = 77,019,437.25/x
  3. Step 3: Cross multiply
    139,743,530.37x = 192,838,200.87 × 77,019,437.25
  4. Step 4: Simplify right side
    139,743,530.37x = 14,852,289,711,309,860
  5. Step 5: Solve for x
    x = 14,852,289,711,309,860/139,743,530.37
  6. Step 6: Final answer
    x = 106,282,485.29

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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.