Home / 385,635,900.82-578,378,529.14-123,250,068.55

Finding the Fourth Proportional to 385,635,900.82, 578,378,529.14 and 123,250,068.55

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Solution

The fourth proportional to 385,635,900.82, 578,378,529.14 and 123,250,068.55 is: 184,851,029.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,635,900.82 : 578,378,529.14 = 123,250,068.55 : x
  2. Step 2: Convert to fraction form
    385,635,900.82/578,378,529.14 = 123,250,068.55/x
  3. Step 3: Cross multiply
    385,635,900.82x = 578,378,529.14 × 123,250,068.55
  4. Step 4: Simplify right side
    385,635,900.82x = 71,285,193,364,353,168
  5. Step 5: Solve for x
    x = 71,285,193,364,353,168/385,635,900.82
  6. Step 6: Final answer
    x = 184,851,029.72

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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.