Home / 30,278,992.55-45,402,529.19-13,219,736.45

Finding the Fourth Proportional to 30,278,992.55, 45,402,529.19 and 13,219,736.45

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Solution

The fourth proportional to 30,278,992.55, 45,402,529.19 and 13,219,736.45 is: 19,822,636.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,278,992.55 : 45,402,529.19 = 13,219,736.45 : x
  2. Step 2: Convert to fraction form
    30,278,992.55/45,402,529.19 = 13,219,736.45/x
  3. Step 3: Cross multiply
    30,278,992.55x = 45,402,529.19 × 13,219,736.45
  4. Step 4: Simplify right side
    30,278,992.55x = 600,209,469,762,120.75
  5. Step 5: Solve for x
    x = 600,209,469,762,120.75/30,278,992.55
  6. Step 6: Final answer
    x = 19,822,636.73

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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.