Home / 256,914,731.37-354,542,661.28-139,440,048.24

Finding the Fourth Proportional to 256,914,731.37, 354,542,661.28 and 139,440,048.24

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Solution

The fourth proportional to 256,914,731.37, 354,542,661.28 and 139,440,048.24 is: 192,427,446.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,914,731.37 : 354,542,661.28 = 139,440,048.24 : x
  2. Step 2: Convert to fraction form
    256,914,731.37/354,542,661.28 = 139,440,048.24/x
  3. Step 3: Cross multiply
    256,914,731.37x = 354,542,661.28 × 139,440,048.24
  4. Step 4: Simplify right side
    256,914,731.37x = 49,437,445,791,323,976
  5. Step 5: Solve for x
    x = 49,437,445,791,323,976/256,914,731.37
  6. Step 6: Final answer
    x = 192,427,446.76

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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.