Home / 488,107,695.88-673,601,774.34-287,178,595.84

Finding the Fourth Proportional to 488,107,695.88, 673,601,774.34 and 287,178,595.84

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Solution

The fourth proportional to 488,107,695.88, 673,601,774.34 and 287,178,595.84 is: 396,314,201.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,107,695.88 : 673,601,774.34 = 287,178,595.84 : x
  2. Step 2: Convert to fraction form
    488,107,695.88/673,601,774.34 = 287,178,595.84/x
  3. Step 3: Cross multiply
    488,107,695.88x = 673,601,774.34 × 287,178,595.84
  4. Step 4: Simplify right side
    488,107,695.88x = 193,444,011,710,293,728
  5. Step 5: Solve for x
    x = 193,444,011,710,293,728/488,107,695.88
  6. Step 6: Final answer
    x = 396,314,201.44

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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.