Home / 161,723,350.40-242,419,688.40-79,716,099.20

Finding the Fourth Proportional to 161,723,350.40, 242,419,688.40 and 79,716,099.20

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Solution

The fourth proportional to 161,723,350.40, 242,419,688.40 and 79,716,099.20 is: 119,492,651.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,723,350.40 : 242,419,688.40 = 79,716,099.20 : x
  2. Step 2: Convert to fraction form
    161,723,350.40/242,419,688.40 = 79,716,099.20/x
  3. Step 3: Cross multiply
    161,723,350.40x = 242,419,688.40 × 79,716,099.20
  4. Step 4: Simplify right side
    161,723,350.40x = 19,324,751,928,527,492
  5. Step 5: Solve for x
    x = 19,324,751,928,527,492/161,723,350.40
  6. Step 6: Final answer
    x = 119,492,651.37

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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.