Home / 458,190,173.54-687,349,822.74-147,193,507.46

Finding the Fourth Proportional to 458,190,173.54, 687,349,822.74 and 147,193,507.46

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Solution

The fourth proportional to 458,190,173.54, 687,349,822.74 and 147,193,507.46 is: 220,811,001.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,190,173.54 : 687,349,822.74 = 147,193,507.46 : x
  2. Step 2: Convert to fraction form
    458,190,173.54/687,349,822.74 = 147,193,507.46/x
  3. Step 3: Cross multiply
    458,190,173.54x = 687,349,822.74 × 147,193,507.46
  4. Step 4: Simplify right side
    458,190,173.54x = 101,173,431,261,109,872
  5. Step 5: Solve for x
    x = 101,173,431,261,109,872/458,190,173.54
  6. Step 6: Final answer
    x = 220,811,001.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.