Home / 21,685,967.48-32,528,899.38-11,970,114.68

Finding the Fourth Proportional to 21,685,967.48, 32,528,899.38 and 11,970,114.68

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Solution

The fourth proportional to 21,685,967.48, 32,528,899.38 and 11,970,114.68 is: 17,955,143.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,685,967.48 : 32,528,899.38 = 11,970,114.68 : x
  2. Step 2: Convert to fraction form
    21,685,967.48/32,528,899.38 = 11,970,114.68/x
  3. Step 3: Cross multiply
    21,685,967.48x = 32,528,899.38 × 11,970,114.68
  4. Step 4: Simplify right side
    21,685,967.48x = 389,374,655,992,780.88
  5. Step 5: Solve for x
    x = 389,374,655,992,780.88/21,685,967.48
  6. Step 6: Final answer
    x = 17,955,143.41

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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.