Home / 20,465,789.20-30,698,683.80-8,329,005.37

Finding the Fourth Proportional to 20,465,789.20, 30,698,683.80 and 8,329,005.37

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Solution

The fourth proportional to 20,465,789.20, 30,698,683.80 and 8,329,005.37 is: 12,493,508.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,465,789.20 : 30,698,683.80 = 8,329,005.37 : x
  2. Step 2: Convert to fraction form
    20,465,789.20/30,698,683.80 = 8,329,005.37/x
  3. Step 3: Cross multiply
    20,465,789.20x = 30,698,683.80 × 8,329,005.37
  4. Step 4: Simplify right side
    20,465,789.20x = 255,689,502,222,132.03
  5. Step 5: Solve for x
    x = 255,689,502,222,132.03/20,465,789.20
  6. Step 6: Final answer
    x = 12,493,508.06

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1.5x scale

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.