Home / 20,378,152.50-30,558,262.05-10,791,293.82

Finding the Fourth Proportional to 20,378,152.50, 30,558,262.05 and 10,791,293.82

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Solution

The fourth proportional to 20,378,152.50, 30,558,262.05 and 10,791,293.82 is: 16,182,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,378,152.50 : 30,558,262.05 = 10,791,293.82 : x
  2. Step 2: Convert to fraction form
    20,378,152.50/30,558,262.05 = 10,791,293.82/x
  3. Step 3: Cross multiply
    20,378,152.50x = 30,558,262.05 × 10,791,293.82
  4. Step 4: Simplify right side
    20,378,152.50x = 329,763,184,410,105.56
  5. Step 5: Solve for x
    x = 329,763,184,410,105.56/20,378,152.50
  6. Step 6: Final answer
    x = 16,182,192.40

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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.