Home / 20,900,320,748.08-28,841,512,227.01-12,210,581,297.68

Finding the Fourth Proportional to 20,900,320,748.08, 28,841,512,227.01 and 12,210,581,297.68

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Solution

The fourth proportional to 20,900,320,748.08, 28,841,512,227.01 and 12,210,581,297.68 is: 16,850,058,620.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,900,320,748.08 : 28,841,512,227.01 = 12,210,581,297.68 : x
  2. Step 2: Convert to fraction form
    20,900,320,748.08/28,841,512,227.01 = 12,210,581,297.68/x
  3. Step 3: Cross multiply
    20,900,320,748.08x = 28,841,512,227.01 × 12,210,581,297.68
  4. Step 4: Simplify right side
    20,900,320,748.08x = 352,171,629,795,814,211,584
  5. Step 5: Solve for x
    x = 352,171,629,795,814,211,584/20,900,320,748.08
  6. Step 6: Final answer
    x = 16,850,058,620.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.