Home / 12,436,867.36-17,170,159.44-8,151,980.32

Finding the Fourth Proportional to 12,436,867.36, 17,170,159.44 and 8,151,980.32

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Solution

The fourth proportional to 12,436,867.36, 17,170,159.44 and 8,151,980.32 is: 11,254,506.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,436,867.36 : 17,170,159.44 = 8,151,980.32 : x
  2. Step 2: Convert to fraction form
    12,436,867.36/17,170,159.44 = 8,151,980.32/x
  3. Step 3: Cross multiply
    12,436,867.36x = 17,170,159.44 × 8,151,980.32
  4. Step 4: Simplify right side
    12,436,867.36x = 139,970,801,846,142.23
  5. Step 5: Solve for x
    x = 139,970,801,846,142.23/12,436,867.36
  6. Step 6: Final answer
    x = 11,254,506.28

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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.