Home / 21,013,343.22-31,505,129.90-9,335,300.74

Finding the Fourth Proportional to 21,013,343.22, 31,505,129.90 and 9,335,300.74

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Solution

The fourth proportional to 21,013,343.22, 31,505,129.90 and 9,335,300.74 is: 13,996,338.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,013,343.22 : 31,505,129.90 = 9,335,300.74 : x
  2. Step 2: Convert to fraction form
    21,013,343.22/31,505,129.90 = 9,335,300.74/x
  3. Step 3: Cross multiply
    21,013,343.22x = 31,505,129.90 × 9,335,300.74
  4. Step 4: Simplify right side
    21,013,343.22x = 294,109,862,396,882.94
  5. Step 5: Solve for x
    x = 294,109,862,396,882.94/21,013,343.22
  6. Step 6: Final answer
    x = 13,996,338.39

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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.