Home / 81,667,163,021.80-122,500,744,532.70-19,628,866,445.80

Finding the Fourth Proportional to 81,667,163,021.80, 122,500,744,532.70 and 19,628,866,445.80

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Solution

The fourth proportional to 81,667,163,021.80, 122,500,744,532.70 and 19,628,866,445.80 is: 29,443,299,668.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,667,163,021.80 : 122,500,744,532.70 = 19,628,866,445.80 : x
  2. Step 2: Convert to fraction form
    81,667,163,021.80/122,500,744,532.70 = 19,628,866,445.80/x
  3. Step 3: Cross multiply
    81,667,163,021.80x = 122,500,744,532.70 × 19,628,866,445.80
  4. Step 4: Simplify right side
    81,667,163,021.80x = 2,404,550,753,943,432,462,336
  5. Step 5: Solve for x
    x = 2,404,550,753,943,432,462,336/81,667,163,021.80
  6. Step 6: Final answer
    x = 29,443,299,668.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.