Home / 20,178,703.80-30,271,992.30-8,664,148.80

Finding the Fourth Proportional to 20,178,703.80, 30,271,992.30 and 8,664,148.80

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Solution

The fourth proportional to 20,178,703.80, 30,271,992.30 and 8,664,148.80 is: 12,997,913.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,178,703.80 : 30,271,992.30 = 8,664,148.80 : x
  2. Step 2: Convert to fraction form
    20,178,703.80/30,271,992.30 = 8,664,148.80/x
  3. Step 3: Cross multiply
    20,178,703.80x = 30,271,992.30 × 8,664,148.80
  4. Step 4: Simplify right side
    20,178,703.80x = 262,281,045,759,654.28
  5. Step 5: Solve for x
    x = 262,281,045,759,654.28/20,178,703.80
  6. Step 6: Final answer
    x = 12,997,913.46

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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.