Home / 435,997,261.72-654,122,126.22-129,296,755.72

Finding the Fourth Proportional to 435,997,261.72, 654,122,126.22 and 129,296,755.72

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Solution

The fourth proportional to 435,997,261.72, 654,122,126.22 and 129,296,755.72 is: 193,982,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,997,261.72 : 654,122,126.22 = 129,296,755.72 : x
  2. Step 2: Convert to fraction form
    435,997,261.72/654,122,126.22 = 129,296,755.72/x
  3. Step 3: Cross multiply
    435,997,261.72x = 654,122,126.22 × 129,296,755.72
  4. Step 4: Simplify right side
    435,997,261.72x = 84,575,868,764,914,352
  5. Step 5: Solve for x
    x = 84,575,868,764,914,352/435,997,261.72
  6. Step 6: Final answer
    x = 193,982,568.68

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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.