Home / 979,231,124.90-1,469,448,886.53-388,918,087.37

Finding the Fourth Proportional to 979,231,124.90, 1,469,448,886.53 and 388,918,087.37

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Solution

The fourth proportional to 979,231,124.90, 1,469,448,886.53 and 388,918,087.37 is: 583,616,304.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,231,124.90 : 1,469,448,886.53 = 388,918,087.37 : x
  2. Step 2: Convert to fraction form
    979,231,124.90/1,469,448,886.53 = 388,918,087.37/x
  3. Step 3: Cross multiply
    979,231,124.90x = 1,469,448,886.53 × 388,918,087.37
  4. Step 4: Simplify right side
    979,231,124.90x = 571,495,250,434,633,344
  5. Step 5: Solve for x
    x = 571,495,250,434,633,344/979,231,124.90
  6. Step 6: Final answer
    x = 583,616,304.57

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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.