Home / 13,488,346.70-20,232,520.05-9,378,536.30

Finding the Fourth Proportional to 13,488,346.70, 20,232,520.05 and 9,378,536.30

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Solution

The fourth proportional to 13,488,346.70, 20,232,520.05 and 9,378,536.30 is: 14,067,804.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,488,346.70 : 20,232,520.05 = 9,378,536.30 : x
  2. Step 2: Convert to fraction form
    13,488,346.70/20,232,520.05 = 9,378,536.30/x
  3. Step 3: Cross multiply
    13,488,346.70x = 20,232,520.05 × 9,378,536.30
  4. Step 4: Simplify right side
    13,488,346.70x = 189,751,423,729,402.84
  5. Step 5: Solve for x
    x = 189,751,423,729,402.84/13,488,346.70
  6. Step 6: Final answer
    x = 14,067,804.45

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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.