Home / 387,970,664-536,099,861.75-276,267,575.87

Finding the Fourth Proportional to 387,970,664, 536,099,861.75 and 276,267,575.87

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Solution

The fourth proportional to 387,970,664, 536,099,861.75 and 276,267,575.87 is: 381,747,959.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,970,664 : 536,099,861.75 = 276,267,575.87 : x
  2. Step 2: Convert to fraction form
    387,970,664/536,099,861.75 = 276,267,575.87/x
  3. Step 3: Cross multiply
    387,970,664x = 536,099,861.75 × 276,267,575.87
  4. Step 4: Simplify right side
    387,970,664x = 148,107,009,229,914,624
  5. Step 5: Solve for x
    x = 148,107,009,229,914,624/387,970,664
  6. Step 6: Final answer
    x = 381,747,959.25

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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.