Home / 15,009,795,861.96-20,713,899,500.82-8,235,612,648.84

Finding the Fourth Proportional to 15,009,795,861.96, 20,713,899,500.82 and 8,235,612,648.84

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Solution

The fourth proportional to 15,009,795,861.96, 20,713,899,500.82 and 8,235,612,648.84 is: 11,365,354,619.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,009,795,861.96 : 20,713,899,500.82 = 8,235,612,648.84 : x
  2. Step 2: Convert to fraction form
    15,009,795,861.96/20,713,899,500.82 = 8,235,612,648.84/x
  3. Step 3: Cross multiply
    15,009,795,861.96x = 20,713,899,500.82 × 8,235,612,648.84
  4. Step 4: Simplify right side
    15,009,795,861.96x = 170,591,652,735,753,748,480
  5. Step 5: Solve for x
    x = 170,591,652,735,753,748,480/15,009,795,861.96
  6. Step 6: Final answer
    x = 11,365,354,619.39

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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.