Home / 399,815,999.10-599,723,998.65-127,214,322.30

Finding the Fourth Proportional to 399,815,999.10, 599,723,998.65 and 127,214,322.30

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Solution

The fourth proportional to 399,815,999.10, 599,723,998.65 and 127,214,322.30 is: 190,821,483.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,815,999.10 : 599,723,998.65 = 127,214,322.30 : x
  2. Step 2: Convert to fraction form
    399,815,999.10/599,723,998.65 = 127,214,322.30/x
  3. Step 3: Cross multiply
    399,815,999.10x = 599,723,998.65 × 127,214,322.30
  4. Step 4: Simplify right side
    399,815,999.10x = 76,293,482,055,305,856
  5. Step 5: Solve for x
    x = 76,293,482,055,305,856/399,815,999.10
  6. Step 6: Final answer
    x = 190,821,483.45

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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.