Home / 128,260,839.56-177,002,226.07-69,525,455.36

Finding the Fourth Proportional to 128,260,839.56, 177,002,226.07 and 69,525,455.36

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Solution

The fourth proportional to 128,260,839.56, 177,002,226.07 and 69,525,455.36 is: 95,946,357.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,260,839.56 : 177,002,226.07 = 69,525,455.36 : x
  2. Step 2: Convert to fraction form
    128,260,839.56/177,002,226.07 = 69,525,455.36/x
  3. Step 3: Cross multiply
    128,260,839.56x = 177,002,226.07 × 69,525,455.36
  4. Step 4: Simplify right side
    128,260,839.56x = 12,306,160,366,191,588
  5. Step 5: Solve for x
    x = 12,306,160,366,191,588/128,260,839.56
  6. Step 6: Final answer
    x = 95,946,357.51

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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.