Home / 18,443,613,856.29-27,667,109,121.12-5,178,782,750.70

Finding the Fourth Proportional to 18,443,613,856.29, 27,667,109,121.12 and 5,178,782,750.70

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Solution

The fourth proportional to 18,443,613,856.29, 27,667,109,121.12 and 5,178,782,750.70 is: 7,768,648,194.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443,613,856.29 : 27,667,109,121.12 = 5,178,782,750.70 : x
  2. Step 2: Convert to fraction form
    18,443,613,856.29/27,667,109,121.12 = 5,178,782,750.70/x
  3. Step 3: Cross multiply
    18,443,613,856.29x = 27,667,109,121.12 × 5,178,782,750.70
  4. Step 4: Simplify right side
    18,443,613,856.29x = 143,281,947,478,190,882,816
  5. Step 5: Solve for x
    x = 143,281,947,478,190,882,816/18,443,613,856.29
  6. Step 6: Final answer
    x = 7,768,648,194.15

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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.