Home / 232,598,439.44-320,987,969.20-128,180,257.28

Finding the Fourth Proportional to 232,598,439.44, 320,987,969.20 and 128,180,257.28

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Solution

The fourth proportional to 232,598,439.44, 320,987,969.20 and 128,180,257.28 is: 176,889,924.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    232,598,439.44 : 320,987,969.20 = 128,180,257.28 : x
  2. Step 2: Convert to fraction form
    232,598,439.44/320,987,969.20 = 128,180,257.28/x
  3. Step 3: Cross multiply
    232,598,439.44x = 320,987,969.20 × 128,180,257.28
  4. Step 4: Simplify right side
    232,598,439.44x = 41,144,320,475,840,712
  5. Step 5: Solve for x
    x = 41,144,320,475,840,712/232,598,439.44
  6. Step 6: Final answer
    x = 176,889,924.86

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1.5x scale

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.