Home / 21,368,561.76-29,485,354.20-12,072,740.06

Finding the Fourth Proportional to 21,368,561.76, 29,485,354.20 and 12,072,740.06

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Solution

The fourth proportional to 21,368,561.76, 29,485,354.20 and 12,072,740.06 is: 16,658,538.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,368,561.76 : 29,485,354.20 = 12,072,740.06 : x
  2. Step 2: Convert to fraction form
    21,368,561.76/29,485,354.20 = 12,072,740.06/x
  3. Step 3: Cross multiply
    21,368,561.76x = 29,485,354.20 × 12,072,740.06
  4. Step 4: Simplify right side
    21,368,561.76x = 355,969,016,833,629.25
  5. Step 5: Solve for x
    x = 355,969,016,833,629.25/21,368,561.76
  6. Step 6: Final answer
    x = 16,658,538.88

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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.