Home / 280,848,999.60-421,105,537.80-144,800,103.60

Finding the Fourth Proportional to 280,848,999.60, 421,105,537.80 and 144,800,103.60

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Solution

The fourth proportional to 280,848,999.60, 421,105,537.80 and 144,800,103.60 is: 217,113,557.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,848,999.60 : 421,105,537.80 = 144,800,103.60 : x
  2. Step 2: Convert to fraction form
    280,848,999.60/421,105,537.80 = 144,800,103.60/x
  3. Step 3: Cross multiply
    280,848,999.60x = 421,105,537.80 × 144,800,103.60
  4. Step 4: Simplify right side
    280,848,999.60x = 60,976,125,499,973,712
  5. Step 5: Solve for x
    x = 60,976,125,499,973,712/280,848,999.60
  6. Step 6: Final answer
    x = 217,113,557.77

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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.