Home / 211,869,322.80-318,006,937.80-109,706,679.60

Finding the Fourth Proportional to 211,869,322.80, 318,006,937.80 and 109,706,679.60

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Solution

The fourth proportional to 211,869,322.80, 318,006,937.80 and 109,706,679.60 is: 164,665,109.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,869,322.80 : 318,006,937.80 = 109,706,679.60 : x
  2. Step 2: Convert to fraction form
    211,869,322.80/318,006,937.80 = 109,706,679.60/x
  3. Step 3: Cross multiply
    211,869,322.80x = 318,006,937.80 × 109,706,679.60
  4. Step 4: Simplify right side
    211,869,322.80x = 34,887,485,235,801,728
  5. Step 5: Solve for x
    x = 34,887,485,235,801,728/211,869,322.80
  6. Step 6: Final answer
    x = 164,665,109.49

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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.