Home / 30,568,306.56-42,166,745.28-19,102,128

Finding the Fourth Proportional to 30,568,306.56, 42,166,745.28 and 19,102,128

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Solution

The fourth proportional to 30,568,306.56, 42,166,745.28 and 19,102,128 is: 26,349,989.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,568,306.56 : 42,166,745.28 = 19,102,128 : x
  2. Step 2: Convert to fraction form
    30,568,306.56/42,166,745.28 = 19,102,128/x
  3. Step 3: Cross multiply
    30,568,306.56x = 42,166,745.28 × 19,102,128
  4. Step 4: Simplify right side
    30,568,306.56x = 805,474,565,681,955.88
  5. Step 5: Solve for x
    x = 805,474,565,681,955.88/30,568,306.56
  6. Step 6: Final answer
    x = 26,349,989.79

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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.