Home / 38,730,166.22-53,447,978.85-21,327,128.30

Finding the Fourth Proportional to 38,730,166.22, 53,447,978.85 and 21,327,128.30

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Solution

The fourth proportional to 38,730,166.22, 53,447,978.85 and 21,327,128.30 is: 29,431,629.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,730,166.22 : 53,447,978.85 = 21,327,128.30 : x
  2. Step 2: Convert to fraction form
    38,730,166.22/53,447,978.85 = 21,327,128.30/x
  3. Step 3: Cross multiply
    38,730,166.22x = 53,447,978.85 × 21,327,128.30
  4. Step 4: Simplify right side
    38,730,166.22x = 1,139,891,902,309,636.50
  5. Step 5: Solve for x
    x = 1,139,891,902,309,636.50/38,730,166.22
  6. Step 6: Final answer
    x = 29,431,629.49

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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.