Home / 161,723,862.40-242,420,456.40-79,716,611.20

Finding the Fourth Proportional to 161,723,862.40, 242,420,456.40 and 79,716,611.20

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Solution

The fourth proportional to 161,723,862.40, 242,420,456.40 and 79,716,611.20 is: 119,493,419.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,723,862.40 : 242,420,456.40 = 79,716,611.20 : x
  2. Step 2: Convert to fraction form
    161,723,862.40/242,420,456.40 = 79,716,611.20/x
  3. Step 3: Cross multiply
    161,723,862.40x = 242,420,456.40 × 79,716,611.20
  4. Step 4: Simplify right side
    161,723,862.40x = 19,324,937,269,765,352
  5. Step 5: Solve for x
    x = 19,324,937,269,765,352/161,723,862.40
  6. Step 6: Final answer
    x = 119,493,419.11

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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.