Home / 30,451,262.72-45,688,857.41-13,399,978.23

Finding the Fourth Proportional to 30,451,262.72, 45,688,857.41 and 13,399,978.23

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Solution

The fourth proportional to 30,451,262.72, 45,688,857.41 and 13,399,978.23 is: 20,105,231.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,451,262.72 : 45,688,857.41 = 13,399,978.23 : x
  2. Step 2: Convert to fraction form
    30,451,262.72/45,688,857.41 = 13,399,978.23/x
  3. Step 3: Cross multiply
    30,451,262.72x = 45,688,857.41 × 13,399,978.23
  4. Step 4: Simplify right side
    30,451,262.72x = 612,229,694,681,074.12
  5. Step 5: Solve for x
    x = 612,229,694,681,074.12/30,451,262.72
  6. Step 6: Final answer
    x = 20,105,231.77

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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.