Home / 31,655,489.88-47,481,763.86-13,203,819.48

Finding the Fourth Proportional to 31,655,489.88, 47,481,763.86 and 13,203,819.48

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Solution

The fourth proportional to 31,655,489.88, 47,481,763.86 and 13,203,819.48 is: 19,805,115.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,655,489.88 : 47,481,763.86 = 13,203,819.48 : x
  2. Step 2: Convert to fraction form
    31,655,489.88/47,481,763.86 = 13,203,819.48/x
  3. Step 3: Cross multiply
    31,655,489.88x = 47,481,763.86 × 13,203,819.48
  4. Step 4: Simplify right side
    31,655,489.88x = 626,940,638,599,428
  5. Step 5: Solve for x
    x = 626,940,638,599,428/31,655,489.88
  6. Step 6: Final answer
    x = 19,805,115.67

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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.