Home / 312,575,260.50-431,353,859.49-173,367,338.58

Finding the Fourth Proportional to 312,575,260.50, 431,353,859.49 and 173,367,338.58

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Solution

The fourth proportional to 312,575,260.50, 431,353,859.49 and 173,367,338.58 is: 239,246,927.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,575,260.50 : 431,353,859.49 = 173,367,338.58 : x
  2. Step 2: Convert to fraction form
    312,575,260.50/431,353,859.49 = 173,367,338.58/x
  3. Step 3: Cross multiply
    312,575,260.50x = 431,353,859.49 × 173,367,338.58
  4. Step 4: Simplify right side
    312,575,260.50x = 74,782,670,605,992,576
  5. Step 5: Solve for x
    x = 74,782,670,605,992,576/312,575,260.50
  6. Step 6: Final answer
    x = 239,246,927.24

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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.