Home / 15,028,890.83-20,739,909.55-8,153,372.90

Finding the Fourth Proportional to 15,028,890.83, 20,739,909.55 and 8,153,372.90

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Solution

The fourth proportional to 15,028,890.83, 20,739,909.55 and 8,153,372.90 is: 11,251,676.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,028,890.83 : 20,739,909.55 = 8,153,372.90 : x
  2. Step 2: Convert to fraction form
    15,028,890.83/20,739,909.55 = 8,153,372.90/x
  3. Step 3: Cross multiply
    15,028,890.83x = 20,739,909.55 × 8,153,372.90
  4. Step 4: Simplify right side
    15,028,890.83x = 169,100,216,473,421.22
  5. Step 5: Solve for x
    x = 169,100,216,473,421.22/15,028,890.83
  6. Step 6: Final answer
    x = 11,251,676.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.