Home / 20,065,555.52-30,094,788.72-7,930,985.12

Finding the Fourth Proportional to 20,065,555.52, 30,094,788.72 and 7,930,985.12

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Solution

The fourth proportional to 20,065,555.52, 30,094,788.72 and 7,930,985.12 is: 11,895,076.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,065,555.52 : 30,094,788.72 = 7,930,985.12 : x
  2. Step 2: Convert to fraction form
    20,065,555.52/30,094,788.72 = 7,930,985.12/x
  3. Step 3: Cross multiply
    20,065,555.52x = 30,094,788.72 × 7,930,985.12
  4. Step 4: Simplify right side
    20,065,555.52x = 238,681,321,527,863.84
  5. Step 5: Solve for x
    x = 238,681,321,527,863.84/20,065,555.52
  6. Step 6: Final answer
    x = 11,895,076.68

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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.