Home / 11,487,809.58-15,855,878.70-7,140,179.34

Finding the Fourth Proportional to 11,487,809.58, 15,855,878.70 and 7,140,179.34

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Solution

The fourth proportional to 11,487,809.58, 15,855,878.70 and 7,140,179.34 is: 9,855,126.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,487,809.58 : 15,855,878.70 = 7,140,179.34 : x
  2. Step 2: Convert to fraction form
    11,487,809.58/15,855,878.70 = 7,140,179.34/x
  3. Step 3: Cross multiply
    11,487,809.58x = 15,855,878.70 × 7,140,179.34
  4. Step 4: Simplify right side
    11,487,809.58x = 113,213,817,511,286.05
  5. Step 5: Solve for x
    x = 113,213,817,511,286.05/11,487,809.58
  6. Step 6: Final answer
    x = 9,855,126.58

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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.