Home / 20,206,795.56-30,329,355.86-12,507,149.68

Finding the Fourth Proportional to 20,206,795.56, 30,329,355.86 and 12,507,149.68

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Solution

The fourth proportional to 20,206,795.56, 30,329,355.86 and 12,507,149.68 is: 18,772,585.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,206,795.56 : 30,329,355.86 = 12,507,149.68 : x
  2. Step 2: Convert to fraction form
    20,206,795.56/30,329,355.86 = 12,507,149.68/x
  3. Step 3: Cross multiply
    20,206,795.56x = 30,329,355.86 × 12,507,149.68
  4. Step 4: Simplify right side
    20,206,795.56x = 379,333,793,439,005.12
  5. Step 5: Solve for x
    x = 379,333,793,439,005.12/20,206,795.56
  6. Step 6: Final answer
    x = 18,772,585.31

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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.