Home / 815,627,169.96-1,223,823,392.46-406,715,206.92

Finding the Fourth Proportional to 815,627,169.96, 1,223,823,392.46 and 406,715,206.92

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Solution

The fourth proportional to 815,627,169.96, 1,223,823,392.46 and 406,715,206.92 is: 610,263,613.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,627,169.96 : 1,223,823,392.46 = 406,715,206.92 : x
  2. Step 2: Convert to fraction form
    815,627,169.96/1,223,823,392.46 = 406,715,206.92/x
  3. Step 3: Cross multiply
    815,627,169.96x = 1,223,823,392.46 × 406,715,206.92
  4. Step 4: Simplify right side
    815,627,169.96x = 497,747,584,297,905,280
  5. Step 5: Solve for x
    x = 497,747,584,297,905,280/815,627,169.96
  6. Step 6: Final answer
    x = 610,263,613.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.