Home / 428,501,363,717.54-591,331,978,451.46-235,813,536,643.26

Finding the Fourth Proportional to 428,501,363,717.54, 591,331,978,451.46 and 235,813,536,643.26

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Solution

The fourth proportional to 428,501,363,717.54, 591,331,978,451.46 and 235,813,536,643.26 is: 325,422,733,685.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,501,363,717.54 : 591,331,978,451.46 = 235,813,536,643.26 : x
  2. Step 2: Convert to fraction form
    428,501,363,717.54/591,331,978,451.46 = 235,813,536,643.26/x
  3. Step 3: Cross multiply
    428,501,363,717.54x = 591,331,978,451.46 × 235,813,536,643.26
  4. Step 4: Simplify right side
    428,501,363,717.54x = 139,444,085,168,894,786,928,640
  5. Step 5: Solve for x
    x = 139,444,085,168,894,786,928,640/428,501,363,717.54
  6. Step 6: Final answer
    x = 325,422,733,685.43

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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.