Home / 255,267,610.72-383,012,789.99-89,390,171.20

Finding the Fourth Proportional to 255,267,610.72, 383,012,789.99 and 89,390,171.20

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Solution

The fourth proportional to 255,267,610.72, 383,012,789.99 and 89,390,171.20 is: 134,124,257.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,267,610.72 : 383,012,789.99 = 89,390,171.20 : x
  2. Step 2: Convert to fraction form
    255,267,610.72/383,012,789.99 = 89,390,171.20/x
  3. Step 3: Cross multiply
    255,267,610.72x = 383,012,789.99 × 89,390,171.20
  4. Step 4: Simplify right side
    255,267,610.72x = 34,237,578,868,021,444
  5. Step 5: Solve for x
    x = 34,237,578,868,021,444/255,267,610.72
  6. Step 6: Final answer
    x = 134,124,257.96

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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.