Home / 13,761,538.42-18,991,410.47-7,567,056.84

Finding the Fourth Proportional to 13,761,538.42, 18,991,410.47 and 7,567,056.84

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Solution

The fourth proportional to 13,761,538.42, 18,991,410.47 and 7,567,056.84 is: 10,442,806.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,761,538.42 : 18,991,410.47 = 7,567,056.84 : x
  2. Step 2: Convert to fraction form
    13,761,538.42/18,991,410.47 = 7,567,056.84/x
  3. Step 3: Cross multiply
    13,761,538.42x = 18,991,410.47 × 7,567,056.84
  4. Step 4: Simplify right side
    13,761,538.42x = 143,709,082,498,261.09
  5. Step 5: Solve for x
    x = 143,709,082,498,261.09/13,761,538.42
  6. Step 6: Final answer
    x = 10,442,806.47

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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.