Home / 15,538,383.30-21,447,104.41-9,178,809.51

Finding the Fourth Proportional to 15,538,383.30, 21,447,104.41 and 9,178,809.51

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Solution

The fourth proportional to 15,538,383.30, 21,447,104.41 and 9,178,809.51 is: 12,669,200.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,538,383.30 : 21,447,104.41 = 9,178,809.51 : x
  2. Step 2: Convert to fraction form
    15,538,383.30/21,447,104.41 = 9,178,809.51/x
  3. Step 3: Cross multiply
    15,538,383.30x = 21,447,104.41 × 9,178,809.51
  4. Step 4: Simplify right side
    15,538,383.30x = 196,858,885,920,470.94
  5. Step 5: Solve for x
    x = 196,858,885,920,470.94/15,538,383.30
  6. Step 6: Final answer
    x = 12,669,200.01

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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.