Home / 645,983,713.47-891,339,934.41-363,682,254.27

Finding the Fourth Proportional to 645,983,713.47, 891,339,934.41 and 363,682,254.27

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Solution

The fourth proportional to 645,983,713.47, 891,339,934.41 and 363,682,254.27 is: 501,815,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,983,713.47 : 891,339,934.41 = 363,682,254.27 : x
  2. Step 2: Convert to fraction form
    645,983,713.47/891,339,934.41 = 363,682,254.27/x
  3. Step 3: Cross multiply
    645,983,713.47x = 891,339,934.41 × 363,682,254.27
  4. Step 4: Simplify right side
    645,983,713.47x = 324,164,516,667,102,720
  5. Step 5: Solve for x
    x = 324,164,516,667,102,720/645,983,713.47
  6. Step 6: Final answer
    x = 501,815,308.82

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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.