Home / 187,919,389.92-259,334,655.41-108,532,976.65

Finding the Fourth Proportional to 187,919,389.92, 259,334,655.41 and 108,532,976.65

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Solution

The fourth proportional to 187,919,389.92, 259,334,655.41 and 108,532,976.65 is: 149,778,913.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,919,389.92 : 259,334,655.41 = 108,532,976.65 : x
  2. Step 2: Convert to fraction form
    187,919,389.92/259,334,655.41 = 108,532,976.65/x
  3. Step 3: Cross multiply
    187,919,389.92x = 259,334,655.41 × 108,532,976.65
  4. Step 4: Simplify right side
    187,919,389.92x = 28,146,362,100,149,328
  5. Step 5: Solve for x
    x = 28,146,362,100,149,328/187,919,389.92
  6. Step 6: Final answer
    x = 149,778,913.78

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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.