Home / 939,351,698.37-1,296,269,828.03-521,690,887.86

Finding the Fourth Proportional to 939,351,698.37, 1,296,269,828.03 and 521,690,887.86

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Solution

The fourth proportional to 939,351,698.37, 1,296,269,828.03 and 521,690,887.86 is: 719,913,700.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,351,698.37 : 1,296,269,828.03 = 521,690,887.86 : x
  2. Step 2: Convert to fraction form
    939,351,698.37/1,296,269,828.03 = 521,690,887.86/x
  3. Step 3: Cross multiply
    939,351,698.37x = 1,296,269,828.03 × 521,690,887.86
  4. Step 4: Simplify right side
    939,351,698.37x = 676,252,157,491,100,160
  5. Step 5: Solve for x
    x = 676,252,157,491,100,160/939,351,698.37
  6. Step 6: Final answer
    x = 719,913,700.76

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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.