Home / 20,155,408,919.70-30,233,113,379.55-18,317,237,169.30

Finding the Fourth Proportional to 20,155,408,919.70, 30,233,113,379.55 and 18,317,237,169.30

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Solution

The fourth proportional to 20,155,408,919.70, 30,233,113,379.55 and 18,317,237,169.30 is: 27,475,855,753.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,155,408,919.70 : 30,233,113,379.55 = 18,317,237,169.30 : x
  2. Step 2: Convert to fraction form
    20,155,408,919.70/30,233,113,379.55 = 18,317,237,169.30/x
  3. Step 3: Cross multiply
    20,155,408,919.70x = 30,233,113,379.55 × 18,317,237,169.30
  4. Step 4: Simplify right side
    20,155,408,919.70x = 553,787,108,139,554,373,632
  5. Step 5: Solve for x
    x = 553,787,108,139,554,373,632/20,155,408,919.70
  6. Step 6: Final answer
    x = 27,475,855,753.95

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Double scale
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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.