Home / 220,988,768.40-331,483,152.60-172,202,484.60

Finding the Fourth Proportional to 220,988,768.40, 331,483,152.60 and 172,202,484.60

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Solution

The fourth proportional to 220,988,768.40, 331,483,152.60 and 172,202,484.60 is: 258,303,726.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,988,768.40 : 331,483,152.60 = 172,202,484.60 : x
  2. Step 2: Convert to fraction form
    220,988,768.40/331,483,152.60 = 172,202,484.60/x
  3. Step 3: Cross multiply
    220,988,768.40x = 331,483,152.60 × 172,202,484.60
  4. Step 4: Simplify right side
    220,988,768.40x = 57,082,222,480,760,952
  5. Step 5: Solve for x
    x = 57,082,222,480,760,952/220,988,768.40
  6. Step 6: Final answer
    x = 258,303,726.90

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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.