Home / 28,198,013.31-42,288,409.40-19,500,201.72

Finding the Fourth Proportional to 28,198,013.31, 42,288,409.40 and 19,500,201.72

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Solution

The fourth proportional to 28,198,013.31, 42,288,409.40 and 19,500,201.72 is: 29,244,347.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,198,013.31 : 42,288,409.40 = 19,500,201.72 : x
  2. Step 2: Convert to fraction form
    28,198,013.31/42,288,409.40 = 19,500,201.72/x
  3. Step 3: Cross multiply
    28,198,013.31x = 42,288,409.40 × 19,500,201.72
  4. Step 4: Simplify right side
    28,198,013.31x = 824,632,513,620,443.12
  5. Step 5: Solve for x
    x = 824,632,513,620,443.12/28,198,013.31
  6. Step 6: Final answer
    x = 29,244,347.98

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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.