Home / 20,823,037.40-31,234,556.10-12,298,986.20

Finding the Fourth Proportional to 20,823,037.40, 31,234,556.10 and 12,298,986.20

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Solution

The fourth proportional to 20,823,037.40, 31,234,556.10 and 12,298,986.20 is: 18,448,479.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,823,037.40 : 31,234,556.10 = 12,298,986.20 : x
  2. Step 2: Convert to fraction form
    20,823,037.40/31,234,556.10 = 12,298,986.20/x
  3. Step 3: Cross multiply
    20,823,037.40x = 31,234,556.10 × 12,298,986.20
  4. Step 4: Simplify right side
    20,823,037.40x = 384,153,374,437,025.81
  5. Step 5: Solve for x
    x = 384,153,374,437,025.81/20,823,037.40
  6. Step 6: Final answer
    x = 18,448,479.30

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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.