Home / 13,541,455.60-18,687,206.64-7,740,361.88

Finding the Fourth Proportional to 13,541,455.60, 18,687,206.64 and 7,740,361.88

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Solution

The fourth proportional to 13,541,455.60, 18,687,206.64 and 7,740,361.88 is: 10,681,698.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541,455.60 : 18,687,206.64 = 7,740,361.88 : x
  2. Step 2: Convert to fraction form
    13,541,455.60/18,687,206.64 = 7,740,361.88/x
  3. Step 3: Cross multiply
    13,541,455.60x = 18,687,206.64 × 7,740,361.88
  4. Step 4: Simplify right side
    13,541,455.60x = 144,645,741,919,938.88
  5. Step 5: Solve for x
    x = 144,645,741,919,938.88/13,541,455.60
  6. Step 6: Final answer
    x = 10,681,698.20

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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.