Home / 98,378,835.30-147,631,238.55-57,438,195.30

Finding the Fourth Proportional to 98,378,835.30, 147,631,238.55 and 57,438,195.30

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Solution

The fourth proportional to 98,378,835.30, 147,631,238.55 and 57,438,195.30 is: 86,194,066.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,378,835.30 : 147,631,238.55 = 57,438,195.30 : x
  2. Step 2: Convert to fraction form
    98,378,835.30/147,631,238.55 = 57,438,195.30/x
  3. Step 3: Cross multiply
    98,378,835.30x = 147,631,238.55 × 57,438,195.30
  4. Step 4: Simplify right side
    98,378,835.30x = 8,479,671,912,215,789
  5. Step 5: Solve for x
    x = 8,479,671,912,215,789/98,378,835.30
  6. Step 6: Final answer
    x = 86,194,066.91

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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.