Home / 13,339,681.68-18,408,824.88-7,228,108.56

Finding the Fourth Proportional to 13,339,681.68, 18,408,824.88 and 7,228,108.56

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Solution

The fourth proportional to 13,339,681.68, 18,408,824.88 and 7,228,108.56 is: 9,974,824.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,339,681.68 : 18,408,824.88 = 7,228,108.56 : x
  2. Step 2: Convert to fraction form
    13,339,681.68/18,408,824.88 = 7,228,108.56/x
  3. Step 3: Cross multiply
    13,339,681.68x = 18,408,824.88 × 7,228,108.56
  4. Step 4: Simplify right side
    13,339,681.68x = 133,060,984,694,668.95
  5. Step 5: Solve for x
    x = 133,060,984,694,668.95/13,339,681.68
  6. Step 6: Final answer
    x = 9,974,824.58

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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.