Home / 428,501,363,714.55-591,331,978,447.33-235,813,536,640.26

Finding the Fourth Proportional to 428,501,363,714.55, 591,331,978,447.33 and 235,813,536,640.26

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Solution

The fourth proportional to 428,501,363,714.55, 591,331,978,447.33 and 235,813,536,640.26 is: 325,422,733,681.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    428,501,363,714.55 : 591,331,978,447.33 = 235,813,536,640.26 : x
  2. Step 2: Convert to fraction form
    428,501,363,714.55/591,331,978,447.33 = 235,813,536,640.26/x
  3. Step 3: Cross multiply
    428,501,363,714.55x = 591,331,978,447.33 × 235,813,536,640.26
  4. Step 4: Simplify right side
    428,501,363,714.55x = 139,444,085,166,146,880,274,432
  5. Step 5: Solve for x
    x = 139,444,085,166,146,880,274,432/428,501,363,714.55
  6. Step 6: Final answer
    x = 325,422,733,681.28

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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.