Home / 643,714,488.14-888,640,913.76-431,945,550.41

Finding the Fourth Proportional to 643,714,488.14, 888,640,913.76 and 431,945,550.41

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Solution

The fourth proportional to 643,714,488.14, 888,640,913.76 and 431,945,550.41 is: 596,296,177.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,714,488.14 : 888,640,913.76 = 431,945,550.41 : x
  2. Step 2: Convert to fraction form
    643,714,488.14/888,640,913.76 = 431,945,550.41/x
  3. Step 3: Cross multiply
    643,714,488.14x = 888,640,913.76 × 431,945,550.41
  4. Step 4: Simplify right side
    643,714,488.14x = 383,844,488,610,908,544
  5. Step 5: Solve for x
    x = 383,844,488,610,908,544/643,714,488.14
  6. Step 6: Final answer
    x = 596,296,177.39

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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.