Home / 425,765,521.82-638,653,400.33-167,102,558.30

Finding the Fourth Proportional to 425,765,521.82, 638,653,400.33 and 167,102,558.30

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Solution

The fourth proportional to 425,765,521.82, 638,653,400.33 and 167,102,558.30 is: 250,655,845.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,765,521.82 : 638,653,400.33 = 167,102,558.30 : x
  2. Step 2: Convert to fraction form
    425,765,521.82/638,653,400.33 = 167,102,558.30/x
  3. Step 3: Cross multiply
    425,765,521.82x = 638,653,400.33 × 167,102,558.30
  4. Step 4: Simplify right side
    425,765,521.82x = 106,720,617,058,108,288
  5. Step 5: Solve for x
    x = 106,720,617,058,108,288/425,765,521.82
  6. Step 6: Final answer
    x = 250,655,845.98

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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.