Home / 1,178,347,997.82-1,626,192,819.57-649,710,349.09

Finding the Fourth Proportional to 1,178,347,997.82, 1,626,192,819.57 and 649,710,349.09

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Solution

The fourth proportional to 1,178,347,997.82, 1,626,192,819.57 and 649,710,349.09 is: 896,640,301.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,178,347,997.82 : 1,626,192,819.57 = 649,710,349.09 : x
  2. Step 2: Convert to fraction form
    1,178,347,997.82/1,626,192,819.57 = 649,710,349.09/x
  3. Step 3: Cross multiply
    1,178,347,997.82x = 1,626,192,819.57 × 649,710,349.09
  4. Step 4: Simplify right side
    1,178,347,997.82x = 1,056,554,304,494,380,416
  5. Step 5: Solve for x
    x = 1,056,554,304,494,380,416/1,178,347,997.82
  6. Step 6: Final answer
    x = 896,640,301.89

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Double scale
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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.