Home / 290,534,225,768.72-400,936,118,321.40-162,075,572,078.49

Finding the Fourth Proportional to 290,534,225,768.72, 400,936,118,321.40 and 162,075,572,078.49

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Solution

The fourth proportional to 290,534,225,768.72, 400,936,118,321.40 and 162,075,572,078.49 is: 223,663,668,443.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,534,225,768.72 : 400,936,118,321.40 = 162,075,572,078.49 : x
  2. Step 2: Convert to fraction form
    290,534,225,768.72/400,936,118,321.40 = 162,075,572,078.49/x
  3. Step 3: Cross multiply
    290,534,225,768.72x = 400,936,118,321.40 × 162,075,572,078.49
  4. Step 4: Simplify right side
    290,534,225,768.72x = 64,981,950,743,870,059,839,488
  5. Step 5: Solve for x
    x = 64,981,950,743,870,059,839,488/290,534,225,768.72
  6. Step 6: Final answer
    x = 223,663,668,443.66

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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.