Home / 385,635,910.29-578,378,543.26-123,250,077.96

Finding the Fourth Proportional to 385,635,910.29, 578,378,543.26 and 123,250,077.96

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Solution

The fourth proportional to 385,635,910.29, 578,378,543.26 and 123,250,077.96 is: 184,851,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,635,910.29 : 578,378,543.26 = 123,250,077.96 : x
  2. Step 2: Convert to fraction form
    385,635,910.29/578,378,543.26 = 123,250,077.96/x
  3. Step 3: Cross multiply
    385,635,910.29x = 578,378,543.26 × 123,250,077.96
  4. Step 4: Simplify right side
    385,635,910.29x = 71,285,200,547,186,224
  5. Step 5: Solve for x
    x = 71,285,200,547,186,224/385,635,910.29
  6. Step 6: Final answer
    x = 184,851,043.81

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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.