Home / 1,143,842,617.44-1,578,376,499.54-641,936,279.70

Finding the Fourth Proportional to 1,143,842,617.44, 1,578,376,499.54 and 641,936,279.70

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Solution

The fourth proportional to 1,143,842,617.44, 1,578,376,499.54 and 641,936,279.70 is: 885,801,178.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,842,617.44 : 1,578,376,499.54 = 641,936,279.70 : x
  2. Step 2: Convert to fraction form
    1,143,842,617.44/1,578,376,499.54 = 641,936,279.70/x
  3. Step 3: Cross multiply
    1,143,842,617.44x = 1,578,376,499.54 × 641,936,279.70
  4. Step 4: Simplify right side
    1,143,842,617.44x = 1,013,217,138,080,616,448
  5. Step 5: Solve for x
    x = 1,013,217,138,080,616,448/1,143,842,617.44
  6. Step 6: Final answer
    x = 885,801,178.09

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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.