Home / 20,180,314.79-30,291,777.21-9,408,005.72

Finding the Fourth Proportional to 20,180,314.79, 30,291,777.21 and 9,408,005.72

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Solution

The fourth proportional to 20,180,314.79, 30,291,777.21 and 9,408,005.72 is: 14,121,940.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,180,314.79 : 30,291,777.21 = 9,408,005.72 : x
  2. Step 2: Convert to fraction form
    20,180,314.79/30,291,777.21 = 9,408,005.72/x
  3. Step 3: Cross multiply
    20,180,314.79x = 30,291,777.21 × 9,408,005.72
  4. Step 4: Simplify right side
    20,180,314.79x = 284,985,213,205,140.88
  5. Step 5: Solve for x
    x = 284,985,213,205,140.88/20,180,314.79
  6. Step 6: Final answer
    x = 14,121,940.92

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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.