Home / 21,636,516,972.33-29,858,396,252.90-11,991,869,618.31

Finding the Fourth Proportional to 21,636,516,972.33, 29,858,396,252.90 and 11,991,869,618.31

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Solution

The fourth proportional to 21,636,516,972.33, 29,858,396,252.90 and 11,991,869,618.31 is: 16,548,781,642.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,636,516,972.33 : 29,858,396,252.90 = 11,991,869,618.31 : x
  2. Step 2: Convert to fraction form
    21,636,516,972.33/29,858,396,252.90 = 11,991,869,618.31/x
  3. Step 3: Cross multiply
    21,636,516,972.33x = 29,858,396,252.90 × 11,991,869,618.31
  4. Step 4: Simplify right side
    21,636,516,972.33x = 358,057,994,876,564,668,416
  5. Step 5: Solve for x
    x = 358,057,994,876,564,668,416/21,636,516,972.33
  6. Step 6: Final answer
    x = 16,548,781,642.37

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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.