Home / 123,204,698.81-184,988,719.88-68,723,729.45

Finding the Fourth Proportional to 123,204,698.81, 184,988,719.88 and 68,723,729.45

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Solution

The fourth proportional to 123,204,698.81, 184,988,719.88 and 68,723,729.45 is: 103,186,930.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,204,698.81 : 184,988,719.88 = 68,723,729.45 : x
  2. Step 2: Convert to fraction form
    123,204,698.81/184,988,719.88 = 68,723,729.45/x
  3. Step 3: Cross multiply
    123,204,698.81x = 184,988,719.88 × 68,723,729.45
  4. Step 4: Simplify right side
    123,204,698.81x = 12,713,114,736,969,238
  5. Step 5: Solve for x
    x = 12,713,114,736,969,238/123,204,698.81
  6. Step 6: Final answer
    x = 103,186,930.85

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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.