Home / 129,172,202.40-193,795,628.40-38,297,978.40

Finding the Fourth Proportional to 129,172,202.40, 193,795,628.40 and 38,297,978.40

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Solution

The fourth proportional to 129,172,202.40, 193,795,628.40 and 38,297,978.40 is: 57,458,033.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,172,202.40 : 193,795,628.40 = 38,297,978.40 : x
  2. Step 2: Convert to fraction form
    129,172,202.40/193,795,628.40 = 38,297,978.40/x
  3. Step 3: Cross multiply
    129,172,202.40x = 193,795,628.40 × 38,297,978.40
  4. Step 4: Simplify right side
    129,172,202.40x = 7,421,980,790,477,626
  5. Step 5: Solve for x
    x = 7,421,980,790,477,626/129,172,202.40
  6. Step 6: Final answer
    x = 57,458,033.95

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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.