Home / 889,237,759.72-1,227,155,313.60-492,767,371.84

Finding the Fourth Proportional to 889,237,759.72, 1,227,155,313.60 and 492,767,371.84

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Solution

The fourth proportional to 889,237,759.72, 1,227,155,313.60 and 492,767,371.84 is: 680,022,965.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,237,759.72 : 1,227,155,313.60 = 492,767,371.84 : x
  2. Step 2: Convert to fraction form
    889,237,759.72/1,227,155,313.60 = 492,767,371.84/x
  3. Step 3: Cross multiply
    889,237,759.72x = 1,227,155,313.60 × 492,767,371.84
  4. Step 4: Simplify right side
    889,237,759.72x = 604,702,098,722,162,944
  5. Step 5: Solve for x
    x = 604,702,098,722,162,944/889,237,759.72
  6. Step 6: Final answer
    x = 680,022,965.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.