Home / 421,083,900.70-581,056,786.09-232,908,144.70

Finding the Fourth Proportional to 421,083,900.70, 581,056,786.09 and 232,908,144.70

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Solution

The fourth proportional to 421,083,900.70, 581,056,786.09 and 232,908,144.70 is: 321,391,669.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,083,900.70 : 581,056,786.09 = 232,908,144.70 : x
  2. Step 2: Convert to fraction form
    421,083,900.70/581,056,786.09 = 232,908,144.70/x
  3. Step 3: Cross multiply
    421,083,900.70x = 581,056,786.09 × 232,908,144.70
  4. Step 4: Simplify right side
    421,083,900.70x = 135,332,858,009,496,848
  5. Step 5: Solve for x
    x = 135,332,858,009,496,848/421,083,900.70
  6. Step 6: Final answer
    x = 321,391,669.89

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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.