Home / 81,483,919.72-122,225,912.52-20,074,273

Finding the Fourth Proportional to 81,483,919.72, 122,225,912.52 and 20,074,273

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Solution

The fourth proportional to 81,483,919.72, 122,225,912.52 and 20,074,273 is: 30,111,417.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,483,919.72 : 122,225,912.52 = 20,074,273 : x
  2. Step 2: Convert to fraction form
    81,483,919.72/122,225,912.52 = 20,074,273/x
  3. Step 3: Cross multiply
    81,483,919.72x = 122,225,912.52 × 20,074,273
  4. Step 4: Simplify right side
    81,483,919.72x = 2,453,596,335,600,598
  5. Step 5: Solve for x
    x = 2,453,596,335,600,598/81,483,919.72
  6. Step 6: Final answer
    x = 30,111,417.62

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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.