Home / 13,923,779.12-20,885,639.96-7,855,756.25

Finding the Fourth Proportional to 13,923,779.12, 20,885,639.96 and 7,855,756.25

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Solution

The fourth proportional to 13,923,779.12, 20,885,639.96 and 7,855,756.25 is: 11,783,618.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,923,779.12 : 20,885,639.96 = 7,855,756.25 : x
  2. Step 2: Convert to fraction form
    13,923,779.12/20,885,639.96 = 7,855,756.25/x
  3. Step 3: Cross multiply
    13,923,779.12x = 20,885,639.96 × 7,855,756.25
  4. Step 4: Simplify right side
    13,923,779.12x = 164,072,496,722,873.25
  5. Step 5: Solve for x
    x = 164,072,496,722,873.25/13,923,779.12
  6. Step 6: Final answer
    x = 11,783,618.18

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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.