Home / 18,488,072.40-25,519,952.52-12,705,994.32

Finding the Fourth Proportional to 18,488,072.40, 25,519,952.52 and 12,705,994.32

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Solution

The fourth proportional to 18,488,072.40, 25,519,952.52 and 12,705,994.32 is: 17,538,679.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488,072.40 : 25,519,952.52 = 12,705,994.32 : x
  2. Step 2: Convert to fraction form
    18,488,072.40/25,519,952.52 = 12,705,994.32/x
  3. Step 3: Cross multiply
    18,488,072.40x = 25,519,952.52 × 12,705,994.32
  4. Step 4: Simplify right side
    18,488,072.40x = 324,256,371,765,789.69
  5. Step 5: Solve for x
    x = 324,256,371,765,789.69/18,488,072.40
  6. Step 6: Final answer
    x = 17,538,679.25

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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.