Home / 128,040,929.30-192,097,355.49-51,417,765.92

Finding the Fourth Proportional to 128,040,929.30, 192,097,355.49 and 51,417,765.92

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Solution

The fourth proportional to 128,040,929.30, 192,097,355.49 and 51,417,765.92 is: 77,141,090.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,040,929.30 : 192,097,355.49 = 51,417,765.92 : x
  2. Step 2: Convert to fraction form
    128,040,929.30/192,097,355.49 = 51,417,765.92/x
  3. Step 3: Cross multiply
    128,040,929.30x = 192,097,355.49 × 51,417,765.92
  4. Step 4: Simplify right side
    128,040,929.30x = 9,877,216,857,475,360
  5. Step 5: Solve for x
    x = 9,877,216,857,475,360/128,040,929.30
  6. Step 6: Final answer
    x = 77,141,090.06

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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.