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Finding the Fourth Proportional to 425,765,522.57, 638,653,401.45 and 167,102,559.05

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Solution

The fourth proportional to 425,765,522.57, 638,653,401.45 and 167,102,559.05 is: 250,655,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,765,522.57 : 638,653,401.45 = 167,102,559.05 : x
  2. Step 2: Convert to fraction form
    425,765,522.57/638,653,401.45 = 167,102,559.05/x
  3. Step 3: Cross multiply
    425,765,522.57x = 638,653,401.45 × 167,102,559.05
  4. Step 4: Simplify right side
    425,765,522.57x = 106,720,617,725,088,720
  5. Step 5: Solve for x
    x = 106,720,617,725,088,720/425,765,522.57
  6. Step 6: Final answer
    x = 250,655,847.10

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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.