Home / 21,668,703.96-29,902,620.42-11,878,970.16

Finding the Fourth Proportional to 21,668,703.96, 29,902,620.42 and 11,878,970.16

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Solution

The fourth proportional to 21,668,703.96, 29,902,620.42 and 11,878,970.16 is: 16,392,874.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,668,703.96 : 29,902,620.42 = 11,878,970.16 : x
  2. Step 2: Convert to fraction form
    21,668,703.96/29,902,620.42 = 11,878,970.16/x
  3. Step 3: Cross multiply
    21,668,703.96x = 29,902,620.42 × 11,878,970.16
  4. Step 4: Simplify right side
    21,668,703.96x = 355,212,335,674,986.69
  5. Step 5: Solve for x
    x = 355,212,335,674,986.69/21,668,703.96
  6. Step 6: Final answer
    x = 16,392,874.09

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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.