Home / 213,170,105.60-294,051,956.40-128,338,171.36

Finding the Fourth Proportional to 213,170,105.60, 294,051,956.40 and 128,338,171.36

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Solution

The fourth proportional to 213,170,105.60, 294,051,956.40 and 128,338,171.36 is: 177,032,751.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,170,105.60 : 294,051,956.40 = 128,338,171.36 : x
  2. Step 2: Convert to fraction form
    213,170,105.60/294,051,956.40 = 128,338,171.36/x
  3. Step 3: Cross multiply
    213,170,105.60x = 294,051,956.40 × 128,338,171.36
  4. Step 4: Simplify right side
    213,170,105.60x = 37,738,090,369,206,448
  5. Step 5: Solve for x
    x = 37,738,090,369,206,448/213,170,105.60
  6. Step 6: Final answer
    x = 177,032,751.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.