Home / 81,383,733,358.92-122,081,411,346.72-21,692,082,941.40

Finding the Fourth Proportional to 81,383,733,358.92, 122,081,411,346.72 and 21,692,082,941.40

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Solution

The fourth proportional to 81,383,733,358.92, 122,081,411,346.72 and 21,692,082,941.40 is: 32,539,673,362.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,383,733,358.92 : 122,081,411,346.72 = 21,692,082,941.40 : x
  2. Step 2: Convert to fraction form
    81,383,733,358.92/122,081,411,346.72 = 21,692,082,941.40/x
  3. Step 3: Cross multiply
    81,383,733,358.92x = 122,081,411,346.72 × 21,692,082,941.40
  4. Step 4: Simplify right side
    81,383,733,358.92x = 2,648,200,100,536,221,433,856
  5. Step 5: Solve for x
    x = 2,648,200,100,536,221,433,856/81,383,733,358.92
  6. Step 6: Final answer
    x = 32,539,673,362.70

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1.5x scale

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.