Home / 20,219,830.60-30,329,745.90-13,417,385.80

Finding the Fourth Proportional to 20,219,830.60, 30,329,745.90 and 13,417,385.80

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Solution

The fourth proportional to 20,219,830.60, 30,329,745.90 and 13,417,385.80 is: 20,126,078.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,219,830.60 : 30,329,745.90 = 13,417,385.80 : x
  2. Step 2: Convert to fraction form
    20,219,830.60/30,329,745.90 = 13,417,385.80/x
  3. Step 3: Cross multiply
    20,219,830.60x = 30,329,745.90 × 13,417,385.80
  4. Step 4: Simplify right side
    20,219,830.60x = 406,945,901,956,268.25
  5. Step 5: Solve for x
    x = 406,945,901,956,268.25/20,219,830.60
  6. Step 6: Final answer
    x = 20,126,078.70

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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.