Home / 890,045,629.76-1,228,260,995.52-493,558,820.48

Finding the Fourth Proportional to 890,045,629.76, 1,228,260,995.52 and 493,558,820.48

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Solution

The fourth proportional to 890,045,629.76, 1,228,260,995.52 and 493,558,820.48 is: 681,110,077.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,045,629.76 : 1,228,260,995.52 = 493,558,820.48 : x
  2. Step 2: Convert to fraction form
    890,045,629.76/1,228,260,995.52 = 493,558,820.48/x
  3. Step 3: Cross multiply
    890,045,629.76x = 1,228,260,995.52 × 493,558,820.48
  4. Step 4: Simplify right side
    890,045,629.76x = 606,219,048,190,441,728
  5. Step 5: Solve for x
    x = 606,219,048,190,441,728/890,045,629.76
  6. Step 6: Final answer
    x = 681,110,077.87

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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.