Home / 21,295,739.46-31,930,815.24-8,326,438.84

Finding the Fourth Proportional to 21,295,739.46, 31,930,815.24 and 8,326,438.84

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Solution

The fourth proportional to 21,295,739.46, 31,930,815.24 and 8,326,438.84 is: 12,484,655.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,295,739.46 : 31,930,815.24 = 8,326,438.84 : x
  2. Step 2: Convert to fraction form
    21,295,739.46/31,930,815.24 = 8,326,438.84/x
  3. Step 3: Cross multiply
    21,295,739.46x = 31,930,815.24 × 8,326,438.84
  4. Step 4: Simplify right side
    21,295,739.46x = 265,869,980,005,913.66
  5. Step 5: Solve for x
    x = 265,869,980,005,913.66/21,295,739.46
  6. Step 6: Final answer
    x = 12,484,655.93

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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.