Home / 18,443,613,848.28-27,667,109,109.08-5,178,782,742.70

Finding the Fourth Proportional to 18,443,613,848.28, 27,667,109,109.08 and 5,178,782,742.70

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Solution

The fourth proportional to 18,443,613,848.28, 27,667,109,109.08 and 5,178,782,742.70 is: 7,768,648,182.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,443,613,848.28 : 27,667,109,109.08 = 5,178,782,742.70 : x
  2. Step 2: Convert to fraction form
    18,443,613,848.28/27,667,109,109.08 = 5,178,782,742.70/x
  3. Step 3: Cross multiply
    18,443,613,848.28x = 27,667,109,109.08 × 5,178,782,742.70
  4. Step 4: Simplify right side
    18,443,613,848.28x = 143,281,947,194,501,480,448
  5. Step 5: Solve for x
    x = 143,281,947,194,501,480,448/18,443,613,848.28
  6. Step 6: Final answer
    x = 7,768,648,182.14

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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.