Home / 20,148,118.30-30,219,225-9,910,230.02

Finding the Fourth Proportional to 20,148,118.30, 30,219,225 and 9,910,230.02

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Solution

The fourth proportional to 20,148,118.30, 30,219,225 and 9,910,230.02 is: 14,863,892.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,148,118.30 : 30,219,225 = 9,910,230.02 : x
  2. Step 2: Convert to fraction form
    20,148,118.30/30,219,225 = 9,910,230.02/x
  3. Step 3: Cross multiply
    20,148,118.30x = 30,219,225 × 9,910,230.02
  4. Step 4: Simplify right side
    20,148,118.30x = 299,479,470,776,134.50
  5. Step 5: Solve for x
    x = 299,479,470,776,134.50/20,148,118.30
  6. Step 6: Final answer
    x = 14,863,892.81

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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.