Home / 320,391,944.64-479,804,083.20-289,337,724

Finding the Fourth Proportional to 320,391,944.64, 479,804,083.20 and 289,337,724

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Solution

The fourth proportional to 320,391,944.64, 479,804,083.20 and 289,337,724 is: 433,298,725.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,391,944.64 : 479,804,083.20 = 289,337,724 : x
  2. Step 2: Convert to fraction form
    320,391,944.64/479,804,083.20 = 289,337,724/x
  3. Step 3: Cross multiply
    320,391,944.64x = 479,804,083.20 × 289,337,724
  4. Step 4: Simplify right side
    320,391,944.64x = 138,825,421,398,994,640
  5. Step 5: Solve for x
    x = 138,825,421,398,994,640/320,391,944.64
  6. Step 6: Final answer
    x = 433,298,725.89

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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.