Home / 245,152,139.43-338,312,234.49-135,147,789.03

Finding the Fourth Proportional to 245,152,139.43, 338,312,234.49 and 135,147,789.03

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Solution

The fourth proportional to 245,152,139.43, 338,312,234.49 and 135,147,789.03 is: 186,505,206.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,152,139.43 : 338,312,234.49 = 135,147,789.03 : x
  2. Step 2: Convert to fraction form
    245,152,139.43/338,312,234.49 = 135,147,789.03/x
  3. Step 3: Cross multiply
    245,152,139.43x = 338,312,234.49 × 135,147,789.03
  4. Step 4: Simplify right side
    245,152,139.43x = 45,722,150,493,122,408
  5. Step 5: Solve for x
    x = 45,722,150,493,122,408/245,152,139.43
  6. Step 6: Final answer
    x = 186,505,206.93

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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.