Home / 1,605,724,889.62-2,408,703,420.54-672,108,771.60

Finding the Fourth Proportional to 1,605,724,889.62, 2,408,703,420.54 and 672,108,771.60

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Solution

The fourth proportional to 1,605,724,889.62, 2,408,703,420.54 and 672,108,771.60 is: 1,008,211,747.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,605,724,889.62 : 2,408,703,420.54 = 672,108,771.60 : x
  2. Step 2: Convert to fraction form
    1,605,724,889.62/2,408,703,420.54 = 672,108,771.60/x
  3. Step 3: Cross multiply
    1,605,724,889.62x = 2,408,703,420.54 × 672,108,771.60
  4. Step 4: Simplify right side
    1,605,724,889.62x = 1,618,910,697,136,866,048
  5. Step 5: Solve for x
    x = 1,618,910,697,136,866,048/1,605,724,889.62
  6. Step 6: Final answer
    x = 1,008,211,747.61

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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.