Home / 645,983,740.26-891,339,971.22-363,682,281.06

Finding the Fourth Proportional to 645,983,740.26, 891,339,971.22 and 363,682,281.06

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Solution

The fourth proportional to 645,983,740.26, 891,339,971.22 and 363,682,281.06 is: 501,815,345.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,983,740.26 : 891,339,971.22 = 363,682,281.06 : x
  2. Step 2: Convert to fraction form
    645,983,740.26/891,339,971.22 = 363,682,281.06/x
  3. Step 3: Cross multiply
    645,983,740.26x = 891,339,971.22 × 363,682,281.06
  4. Step 4: Simplify right side
    645,983,740.26x = 324,164,553,933,244,352
  5. Step 5: Solve for x
    x = 324,164,553,933,244,352/645,983,740.26
  6. Step 6: Final answer
    x = 501,815,345.70

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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.