Home / 139,821,635.78-209,671,674.74-40,089,314.15

Finding the Fourth Proportional to 139,821,635.78, 209,671,674.74 and 40,089,314.15

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Solution

The fourth proportional to 139,821,635.78, 209,671,674.74 and 40,089,314.15 is: 60,116,544.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,821,635.78 : 209,671,674.74 = 40,089,314.15 : x
  2. Step 2: Convert to fraction form
    139,821,635.78/209,671,674.74 = 40,089,314.15/x
  3. Step 3: Cross multiply
    139,821,635.78x = 209,671,674.74 × 40,089,314.15
  4. Step 4: Simplify right side
    139,821,635.78x = 8,405,593,637,008,480
  5. Step 5: Solve for x
    x = 8,405,593,637,008,480/139,821,635.78
  6. Step 6: Final answer
    x = 60,116,544.84

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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.