Home / 12,457,138.20-18,668,211.30-9,902,722.20

Finding the Fourth Proportional to 12,457,138.20, 18,668,211.30 and 9,902,722.20

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Solution

The fourth proportional to 12,457,138.20, 18,668,211.30 and 9,902,722.20 is: 14,840,174.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,457,138.20 : 18,668,211.30 = 9,902,722.20 : x
  2. Step 2: Convert to fraction form
    12,457,138.20/18,668,211.30 = 9,902,722.20/x
  3. Step 3: Cross multiply
    12,457,138.20x = 18,668,211.30 × 9,902,722.20
  4. Step 4: Simplify right side
    12,457,138.20x = 184,866,110,474,800.84
  5. Step 5: Solve for x
    x = 184,866,110,474,800.84/12,457,138.20
  6. Step 6: Final answer
    x = 14,840,174.97

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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.