Home / 128,544,601.52-177,391,001.36-69,806,855.36

Finding the Fourth Proportional to 128,544,601.52, 177,391,001.36 and 69,806,855.36

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Solution

The fourth proportional to 128,544,601.52, 177,391,001.36 and 69,806,855.36 is: 96,333,162.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,544,601.52 : 177,391,001.36 = 69,806,855.36 : x
  2. Step 2: Convert to fraction form
    128,544,601.52/177,391,001.36 = 69,806,855.36/x
  3. Step 3: Cross multiply
    128,544,601.52x = 177,391,001.36 × 69,806,855.36
  4. Step 4: Simplify right side
    128,544,601.52x = 12,383,107,974,103,084
  5. Step 5: Solve for x
    x = 12,383,107,974,103,084/128,544,601.52
  6. Step 6: Final answer
    x = 96,333,162.40

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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.