Home / 670,320,208.50-925,027,392.67-388,074,550.61

Finding the Fourth Proportional to 670,320,208.50, 925,027,392.67 and 388,074,550.61

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Solution

The fourth proportional to 670,320,208.50, 925,027,392.67 and 388,074,550.61 is: 535,534,488.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,320,208.50 : 925,027,392.67 = 388,074,550.61 : x
  2. Step 2: Convert to fraction form
    670,320,208.50/925,027,392.67 = 388,074,550.61/x
  3. Step 3: Cross multiply
    670,320,208.50x = 925,027,392.67 × 388,074,550.61
  4. Step 4: Simplify right side
    670,320,208.50x = 358,979,589,712,350,272
  5. Step 5: Solve for x
    x = 358,979,589,712,350,272/670,320,208.50
  6. Step 6: Final answer
    x = 535,534,488.09

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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.