Home / 12,345,624.21-18,518,438.36-5,153,234.61

Finding the Fourth Proportional to 12,345,624.21, 18,518,438.36 and 5,153,234.61

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Solution

The fourth proportional to 12,345,624.21, 18,518,438.36 and 5,153,234.61 is: 7,729,852.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,345,624.21 : 18,518,438.36 = 5,153,234.61 : x
  2. Step 2: Convert to fraction form
    12,345,624.21/18,518,438.36 = 5,153,234.61/x
  3. Step 3: Cross multiply
    12,345,624.21x = 18,518,438.36 × 5,153,234.61
  4. Step 4: Simplify right side
    12,345,624.21x = 95,429,857,479,903.64
  5. Step 5: Solve for x
    x = 95,429,857,479,903.64/12,345,624.21
  6. Step 6: Final answer
    x = 7,729,852.77

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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.