Home / 13,149,006.40-19,723,509.60-7,409,443.60

Finding the Fourth Proportional to 13,149,006.40, 19,723,509.60 and 7,409,443.60

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Solution

The fourth proportional to 13,149,006.40, 19,723,509.60 and 7,409,443.60 is: 11,114,165.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,149,006.40 : 19,723,509.60 = 7,409,443.60 : x
  2. Step 2: Convert to fraction form
    13,149,006.40/19,723,509.60 = 7,409,443.60/x
  3. Step 3: Cross multiply
    13,149,006.40x = 19,723,509.60 × 7,409,443.60
  4. Step 4: Simplify right side
    13,149,006.40x = 146,140,231,975,258.56
  5. Step 5: Solve for x
    x = 146,140,231,975,258.56/13,149,006.40
  6. Step 6: Final answer
    x = 11,114,165.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.