Home / 929,179,667.40-1,393,979,481.87-307,393,430.91

Finding the Fourth Proportional to 929,179,667.40, 1,393,979,481.87 and 307,393,430.91

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Solution

The fourth proportional to 929,179,667.40, 1,393,979,481.87 and 307,393,430.91 is: 461,159,612.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,179,667.40 : 1,393,979,481.87 = 307,393,430.91 : x
  2. Step 2: Convert to fraction form
    929,179,667.40/1,393,979,481.87 = 307,393,430.91/x
  3. Step 3: Cross multiply
    929,179,667.40x = 1,393,979,481.87 × 307,393,430.91
  4. Step 4: Simplify right side
    929,179,667.40x = 428,500,135,550,163,456
  5. Step 5: Solve for x
    x = 428,500,135,550,163,456/929,179,667.40
  6. Step 6: Final answer
    x = 461,159,612.70

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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.