Home / 139,969,232.70-209,953,849.05-131,459,178.30

Finding the Fourth Proportional to 139,969,232.70, 209,953,849.05 and 131,459,178.30

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Solution

The fourth proportional to 139,969,232.70, 209,953,849.05 and 131,459,178.30 is: 197,188,767.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,232.70 : 209,953,849.05 = 131,459,178.30 : x
  2. Step 2: Convert to fraction form
    139,969,232.70/209,953,849.05 = 131,459,178.30/x
  3. Step 3: Cross multiply
    139,969,232.70x = 209,953,849.05 × 131,459,178.30
  4. Step 4: Simplify right side
    139,969,232.70x = 27,600,360,477,035,236
  5. Step 5: Solve for x
    x = 27,600,360,477,035,236/139,969,232.70
  6. Step 6: Final answer
    x = 197,188,767.45

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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.