Home / 18,443,613,852.87-27,667,109,115.99-5,178,782,747.30

Finding the Fourth Proportional to 18,443,613,852.87, 27,667,109,115.99 and 5,178,782,747.30

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Solution

The fourth proportional to 18,443,613,852.87, 27,667,109,115.99 and 5,178,782,747.30 is: 7,768,648,189.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443,613,852.87 : 27,667,109,115.99 = 5,178,782,747.30 : x
  2. Step 2: Convert to fraction form
    18,443,613,852.87/27,667,109,115.99 = 5,178,782,747.30/x
  3. Step 3: Cross multiply
    18,443,613,852.87x = 27,667,109,115.99 × 5,178,782,747.30
  4. Step 4: Simplify right side
    18,443,613,852.87x = 143,281,947,357,417,242,624
  5. Step 5: Solve for x
    x = 143,281,947,357,417,242,624/18,443,613,852.87
  6. Step 6: Final answer
    x = 7,768,648,189.04

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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.