Home / 14,919,185.78-20,577,378.40-13,173,775.78

Finding the Fourth Proportional to 14,919,185.78, 20,577,378.40 and 13,173,775.78

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Solution

The fourth proportional to 14,919,185.78, 20,577,378.40 and 13,173,775.78 is: 18,170,010.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,919,185.78 : 20,577,378.40 = 13,173,775.78 : x
  2. Step 2: Convert to fraction form
    14,919,185.78/20,577,378.40 = 13,173,775.78/x
  3. Step 3: Cross multiply
    14,919,185.78x = 20,577,378.40 × 13,173,775.78
  4. Step 4: Simplify right side
    14,919,185.78x = 271,081,769,175,347.94
  5. Step 5: Solve for x
    x = 271,081,769,175,347.94/14,919,185.78
  6. Step 6: Final answer
    x = 18,170,010.96

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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.