Home / 12,538,521.51-17,305,051.05-7,646,581.32

Finding the Fourth Proportional to 12,538,521.51, 17,305,051.05 and 7,646,581.32

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Solution

The fourth proportional to 12,538,521.51, 17,305,051.05 and 7,646,581.32 is: 10,553,435.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,538,521.51 : 17,305,051.05 = 7,646,581.32 : x
  2. Step 2: Convert to fraction form
    12,538,521.51/17,305,051.05 = 7,646,581.32/x
  3. Step 3: Cross multiply
    12,538,521.51x = 17,305,051.05 × 7,646,581.32
  4. Step 4: Simplify right side
    12,538,521.51x = 132,324,480,100,576.39
  5. Step 5: Solve for x
    x = 132,324,480,100,576.39/12,538,521.51
  6. Step 6: Final answer
    x = 10,553,435.67

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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.