Home / 822,885,812.37-1,234,449,178.52-386,230,850.37

Finding the Fourth Proportional to 822,885,812.37, 1,234,449,178.52 and 386,230,850.37

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Solution

The fourth proportional to 822,885,812.37, 1,234,449,178.52 and 386,230,850.37 is: 579,402,814.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,885,812.37 : 1,234,449,178.52 = 386,230,850.37 : x
  2. Step 2: Convert to fraction form
    822,885,812.37/1,234,449,178.52 = 386,230,850.37/x
  3. Step 3: Cross multiply
    822,885,812.37x = 1,234,449,178.52 × 386,230,850.37
  4. Step 4: Simplify right side
    822,885,812.37x = 476,782,355,956,396,416
  5. Step 5: Solve for x
    x = 476,782,355,956,396,416/822,885,812.37
  6. Step 6: Final answer
    x = 579,402,814.81

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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.