Home / 21,685,968.48-32,528,900.88-11,970,115.68

Finding the Fourth Proportional to 21,685,968.48, 32,528,900.88 and 11,970,115.68

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Solution

The fourth proportional to 21,685,968.48, 32,528,900.88 and 11,970,115.68 is: 17,955,144.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,685,968.48 : 32,528,900.88 = 11,970,115.68 : x
  2. Step 2: Convert to fraction form
    21,685,968.48/32,528,900.88 = 11,970,115.68/x
  3. Step 3: Cross multiply
    21,685,968.48x = 32,528,900.88 × 11,970,115.68
  4. Step 4: Simplify right side
    21,685,968.48x = 389,374,706,476,853.75
  5. Step 5: Solve for x
    x = 389,374,706,476,853.75/21,685,968.48
  6. Step 6: Final answer
    x = 17,955,144.91

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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.