Home / 13,345,231,138.32-18,415,201,709.30-7,918,831,560.54

Finding the Fourth Proportional to 13,345,231,138.32, 18,415,201,709.30 and 7,918,831,560.54

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Solution

The fourth proportional to 13,345,231,138.32, 18,415,201,709.30 and 7,918,831,560.54 is: 10,927,265,251.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,345,231,138.32 : 18,415,201,709.30 = 7,918,831,560.54 : x
  2. Step 2: Convert to fraction form
    13,345,231,138.32/18,415,201,709.30 = 7,918,831,560.54/x
  3. Step 3: Cross multiply
    13,345,231,138.32x = 18,415,201,709.30 × 7,918,831,560.54
  4. Step 4: Simplify right side
    13,345,231,138.32x = 145,826,880,489,314,992,128
  5. Step 5: Solve for x
    x = 145,826,880,489,314,992,128/13,345,231,138.32
  6. Step 6: Final answer
    x = 10,927,265,251.37

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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.