Home / 90,108,384.75-139,589,719.88

Finding the Third Proportional to 90,108,384.75 and 139,589,719.88

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Solution

The third proportional to 90,108,384.75 and 139,589,719.88 is: 216,242,805.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,108,384.75 : 139,589,719.88 = 139,589,719.88 : x
  2. Step 2: Convert to fraction form
    90,108,384.75/139,589,719.88 = 139,589,719.88/x
  3. Step 3: Cross multiply
    90,108,384.75x = 139,589,719.88 × 139,589,719.88
  4. Step 4: Simplify right side
    90,108,384.75x = 19,485,289,894,780,972
  5. Step 5: Solve for x
    x = 19,485,289,894,780,972/90,108,384.75
  6. Step 6: Final answer
    x = 216,242,805.25

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.