Home / 234,542,972.58-323,669,176.35-128,697,082.86

Finding the Fourth Proportional to 234,542,972.58, 323,669,176.35 and 128,697,082.86

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Solution

The fourth proportional to 234,542,972.58, 323,669,176.35 and 128,697,082.86 is: 177,601,905.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,542,972.58 : 323,669,176.35 = 128,697,082.86 : x
  2. Step 2: Convert to fraction form
    234,542,972.58/323,669,176.35 = 128,697,082.86/x
  3. Step 3: Cross multiply
    234,542,972.58x = 323,669,176.35 × 128,697,082.86
  4. Step 4: Simplify right side
    234,542,972.58x = 41,655,278,807,943,904
  5. Step 5: Solve for x
    x = 41,655,278,807,943,904/234,542,972.58
  6. Step 6: Final answer
    x = 177,601,905.31

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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.