Home / 385,635,909.56-578,378,542.23-123,250,077.23

Finding the Fourth Proportional to 385,635,909.56, 578,378,542.23 and 123,250,077.23

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Solution

The fourth proportional to 385,635,909.56, 578,378,542.23 and 123,250,077.23 is: 184,851,042.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,635,909.56 : 578,378,542.23 = 123,250,077.23 : x
  2. Step 2: Convert to fraction form
    385,635,909.56/578,378,542.23 = 123,250,077.23/x
  3. Step 3: Cross multiply
    385,635,909.56x = 578,378,542.23 × 123,250,077.23
  4. Step 4: Simplify right side
    385,635,909.56x = 71,285,199,995,130,424
  5. Step 5: Solve for x
    x = 71,285,199,995,130,424/385,635,909.56
  6. Step 6: Final answer
    x = 184,851,042.73

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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.