Home / 20,312,157.87-28,030,774.81-11,610,517.31

Finding the Fourth Proportional to 20,312,157.87, 28,030,774.81 and 11,610,517.31

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Solution

The fourth proportional to 20,312,157.87, 28,030,774.81 and 11,610,517.31 is: 16,022,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,312,157.87 : 28,030,774.81 = 11,610,517.31 : x
  2. Step 2: Convert to fraction form
    20,312,157.87/28,030,774.81 = 11,610,517.31/x
  3. Step 3: Cross multiply
    20,312,157.87x = 28,030,774.81 × 11,610,517.31
  4. Step 4: Simplify right side
    20,312,157.87x = 325,451,796,292,961.12
  5. Step 5: Solve for x
    x = 325,451,796,292,961.12/20,312,157.87
  6. Step 6: Final answer
    x = 16,022,512.15

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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.