Home / 139,724,850.35-192,814,679.63-76,143,839.37

Finding the Fourth Proportional to 139,724,850.35, 192,814,679.63 and 76,143,839.37

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Solution

The fourth proportional to 139,724,850.35, 192,814,679.63 and 76,143,839.37 is: 105,075,439.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,724,850.35 : 192,814,679.63 = 76,143,839.37 : x
  2. Step 2: Convert to fraction form
    139,724,850.35/192,814,679.63 = 76,143,839.37/x
  3. Step 3: Cross multiply
    139,724,850.35x = 192,814,679.63 × 76,143,839.37
  4. Step 4: Simplify right side
    139,724,850.35x = 14,681,649,993,537,496
  5. Step 5: Solve for x
    x = 14,681,649,993,537,496/139,724,850.35
  6. Step 6: Final answer
    x = 105,075,439.03

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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.