Home / 51,105,621.80-76,630,439.10-20,779,221.80

Finding the Fourth Proportional to 51,105,621.80, 76,630,439.10 and 20,779,221.80

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Solution

The fourth proportional to 51,105,621.80, 76,630,439.10 and 20,779,221.80 is: 31,157,450.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,105,621.80 : 76,630,439.10 = 20,779,221.80 : x
  2. Step 2: Convert to fraction form
    51,105,621.80/76,630,439.10 = 20,779,221.80/x
  3. Step 3: Cross multiply
    51,105,621.80x = 76,630,439.10 × 20,779,221.80
  4. Step 4: Simplify right side
    51,105,621.80x = 1,592,320,890,690,292.25
  5. Step 5: Solve for x
    x = 1,592,320,890,690,292.25/51,105,621.80
  6. Step 6: Final answer
    x = 31,157,450.68

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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.