Home / 15,009,697.45-20,713,400.19-8,134,179.51

Finding the Fourth Proportional to 15,009,697.45, 20,713,400.19 and 8,134,179.51

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Solution

The fourth proportional to 15,009,697.45, 20,713,400.19 and 8,134,179.51 is: 11,225,177.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009,697.45 : 20,713,400.19 = 8,134,179.51 : x
  2. Step 2: Convert to fraction form
    15,009,697.45/20,713,400.19 = 8,134,179.51/x
  3. Step 3: Cross multiply
    15,009,697.45x = 20,713,400.19 × 8,134,179.51
  4. Step 4: Simplify right side
    15,009,697.45x = 168,486,515,485,603.38
  5. Step 5: Solve for x
    x = 168,486,515,485,603.38/15,009,697.45
  6. Step 6: Final answer
    x = 11,225,177.33

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1.5x scale

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.