Home / 258,366,890.88-387,453,758.40-104,961,263.04

Finding the Fourth Proportional to 258,366,890.88, 387,453,758.40 and 104,961,263.04

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Solution

The fourth proportional to 258,366,890.88, 387,453,758.40 and 104,961,263.04 is: 157,402,659.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,366,890.88 : 387,453,758.40 = 104,961,263.04 : x
  2. Step 2: Convert to fraction form
    258,366,890.88/387,453,758.40 = 104,961,263.04/x
  3. Step 3: Cross multiply
    258,366,890.88x = 387,453,758.40 × 104,961,263.04
  4. Step 4: Simplify right side
    258,366,890.88x = 40,667,635,851,259,008
  5. Step 5: Solve for x
    x = 40,667,635,851,259,008/258,366,890.88
  6. Step 6: Final answer
    x = 157,402,659.89

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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.