Home / 419,665,605.88-579,139,094.06-231,489,655

Finding the Fourth Proportional to 419,665,605.88, 579,139,094.06 and 231,489,655

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Solution

The fourth proportional to 419,665,605.88, 579,139,094.06 and 231,489,655 is: 319,456,031.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,665,605.88 : 579,139,094.06 = 231,489,655 : x
  2. Step 2: Convert to fraction form
    419,665,605.88/579,139,094.06 = 231,489,655/x
  3. Step 3: Cross multiply
    419,665,605.88x = 579,139,094.06 × 231,489,655
  4. Step 4: Simplify right side
    419,665,605.88x = 134,064,709,080,961,936
  5. Step 5: Solve for x
    x = 134,064,709,080,961,936/419,665,605.88
  6. Step 6: Final answer
    x = 319,456,031.67

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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.