Home / 13,356,116.34-20,037,628.61-7,821,326.28

Finding the Fourth Proportional to 13,356,116.34, 20,037,628.61 and 7,821,326.28

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Solution

The fourth proportional to 13,356,116.34, 20,037,628.61 and 7,821,326.28 is: 11,734,012.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356,116.34 : 20,037,628.61 = 7,821,326.28 : x
  2. Step 2: Convert to fraction form
    13,356,116.34/20,037,628.61 = 7,821,326.28/x
  3. Step 3: Cross multiply
    13,356,116.34x = 20,037,628.61 × 7,821,326.28
  4. Step 4: Simplify right side
    13,356,116.34x = 156,720,831,236,272.88
  5. Step 5: Solve for x
    x = 156,720,831,236,272.88/13,356,116.34
  6. Step 6: Final answer
    x = 11,734,012.14

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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.