Home / 55,217,909.70-82,826,864.55-18,814,201.20

Finding the Fourth Proportional to 55,217,909.70, 82,826,864.55 and 18,814,201.20

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Solution

The fourth proportional to 55,217,909.70, 82,826,864.55 and 18,814,201.20 is: 28,221,301.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,217,909.70 : 82,826,864.55 = 18,814,201.20 : x
  2. Step 2: Convert to fraction form
    55,217,909.70/82,826,864.55 = 18,814,201.20/x
  3. Step 3: Cross multiply
    55,217,909.70x = 82,826,864.55 × 18,814,201.20
  4. Step 4: Simplify right side
    55,217,909.70x = 1,558,321,294,408,847.25
  5. Step 5: Solve for x
    x = 1,558,321,294,408,847.25/55,217,909.70
  6. Step 6: Final answer
    x = 28,221,301.80

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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.