Home / 13,241,830.10-18,275,358.24-7,440,485.78

Finding the Fourth Proportional to 13,241,830.10, 18,275,358.24 and 7,440,485.78

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Solution

The fourth proportional to 13,241,830.10, 18,275,358.24 and 7,440,485.78 is: 10,268,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,241,830.10 : 18,275,358.24 = 7,440,485.78 : x
  2. Step 2: Convert to fraction form
    13,241,830.10/18,275,358.24 = 7,440,485.78/x
  3. Step 3: Cross multiply
    13,241,830.10x = 18,275,358.24 × 7,440,485.78
  4. Step 4: Simplify right side
    13,241,830.10x = 135,977,543,109,125.81
  5. Step 5: Solve for x
    x = 135,977,543,109,125.81/13,241,830.10
  6. Step 6: Final answer
    x = 10,268,787.78

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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.