Home / 670,332,215.04-925,043,950.32-388,086,556.80

Finding the Fourth Proportional to 670,332,215.04, 925,043,950.32 and 388,086,556.80

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Solution

The fourth proportional to 670,332,215.04, 925,043,950.32 and 388,086,556.80 is: 535,551,049.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,332,215.04 : 925,043,950.32 = 388,086,556.80 : x
  2. Step 2: Convert to fraction form
    670,332,215.04/925,043,950.32 = 388,086,556.80/x
  3. Step 3: Cross multiply
    670,332,215.04x = 925,043,950.32 × 388,086,556.80
  4. Step 4: Simplify right side
    670,332,215.04x = 358,997,121,568,359,104
  5. Step 5: Solve for x
    x = 358,997,121,568,359,104/670,332,215.04
  6. Step 6: Final answer
    x = 535,551,049.93

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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.