Home / 21,398,833.30-29,533,175.56-11,983,210.36

Finding the Fourth Proportional to 21,398,833.30, 29,533,175.56 and 11,983,210.36

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Solution

The fourth proportional to 21,398,833.30, 29,533,175.56 and 11,983,210.36 is: 16,538,390.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,398,833.30 : 29,533,175.56 = 11,983,210.36 : x
  2. Step 2: Convert to fraction form
    21,398,833.30/29,533,175.56 = 11,983,210.36/x
  3. Step 3: Cross multiply
    21,398,833.30x = 29,533,175.56 × 11,983,210.36
  4. Step 4: Simplify right side
    21,398,833.30x = 353,902,255,334,290.75
  5. Step 5: Solve for x
    x = 353,902,255,334,290.75/21,398,833.30
  6. Step 6: Final answer
    x = 16,538,390.22

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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.