Home / 168,494,967.40-252,742,451.10-82,288,676.20

Finding the Fourth Proportional to 168,494,967.40, 252,742,451.10 and 82,288,676.20

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Solution

The fourth proportional to 168,494,967.40, 252,742,451.10 and 82,288,676.20 is: 123,433,014.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,494,967.40 : 252,742,451.10 = 82,288,676.20 : x
  2. Step 2: Convert to fraction form
    168,494,967.40/252,742,451.10 = 82,288,676.20/x
  3. Step 3: Cross multiply
    168,494,967.40x = 252,742,451.10 × 82,288,676.20
  4. Step 4: Simplify right side
    168,494,967.40x = 20,797,841,720,562,236
  5. Step 5: Solve for x
    x = 20,797,841,720,562,236/168,494,967.40
  6. Step 6: Final answer
    x = 123,433,014.30

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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.