Home / 139,724,850.64-192,814,680.03-76,143,839.65

Finding the Fourth Proportional to 139,724,850.64, 192,814,680.03 and 76,143,839.65

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Solution

The fourth proportional to 139,724,850.64, 192,814,680.03 and 76,143,839.65 is: 105,075,439.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,724,850.64 : 192,814,680.03 = 76,143,839.65 : x
  2. Step 2: Convert to fraction form
    139,724,850.64/192,814,680.03 = 76,143,839.65/x
  3. Step 3: Cross multiply
    139,724,850.64x = 192,814,680.03 × 76,143,839.65
  4. Step 4: Simplify right side
    139,724,850.64x = 14,681,650,077,989,660
  5. Step 5: Solve for x
    x = 14,681,650,077,989,660/139,724,850.64
  6. Step 6: Final answer
    x = 105,075,439.42

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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.