Home / 18,712,835.46-25,823,928.33-10,978,009.38

Finding the Fourth Proportional to 18,712,835.46, 25,823,928.33 and 10,978,009.38

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Solution

The fourth proportional to 18,712,835.46, 25,823,928.33 and 10,978,009.38 is: 15,149,779.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,712,835.46 : 25,823,928.33 = 10,978,009.38 : x
  2. Step 2: Convert to fraction form
    18,712,835.46/25,823,928.33 = 10,978,009.38/x
  3. Step 3: Cross multiply
    18,712,835.46x = 25,823,928.33 × 10,978,009.38
  4. Step 4: Simplify right side
    18,712,835.46x = 283,495,327,435,187.75
  5. Step 5: Solve for x
    x = 283,495,327,435,187.75/18,712,835.46
  6. Step 6: Final answer
    x = 15,149,779.31

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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.