Home / 15,138,009.05-20,917,778.87-10,779,528.54

Finding the Fourth Proportional to 15,138,009.05, 20,917,778.87 and 10,779,528.54

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Solution

The fourth proportional to 15,138,009.05, 20,917,778.87 and 10,779,528.54 is: 14,895,208.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,138,009.05 : 20,917,778.87 = 10,779,528.54 : x
  2. Step 2: Convert to fraction form
    15,138,009.05/20,917,778.87 = 10,779,528.54/x
  3. Step 3: Cross multiply
    15,138,009.05x = 20,917,778.87 × 10,779,528.54
  4. Step 4: Simplify right side
    15,138,009.05x = 225,483,794,322,573.94
  5. Step 5: Solve for x
    x = 225,483,794,322,573.94/15,138,009.05
  6. Step 6: Final answer
    x = 14,895,208.05

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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.